diff --git a/domain/BUILD.bazel b/domain/BUILD.bazel
index 658fd1e6df9..69a5a4a35c9 100755
--- a/domain/BUILD.bazel
+++ b/domain/BUILD.bazel
@@ -37,6 +37,11 @@ MIGRATED_PROD_FILES = glob([
 
 DOMAIN_ASSETS = generate_assets_list_from_text_protos(
     name = "domain_assets",
+    classroom_file_names = [
+        "test_classroom_id_0",
+        "test_classroom_id_1",
+        "test_classroom_id_2",
+    ],
     classroom_list_file_names = [
         "classrooms",
     ],
diff --git a/domain/domain_assets.bzl b/domain/domain_assets.bzl
index 39d7ea486c8..fe853e6707e 100644
--- a/domain/domain_assets.bzl
+++ b/domain/domain_assets.bzl
@@ -6,6 +6,7 @@ load("//model:text_proto_assets.bzl", "generate_proto_binary_assets")
 
 def generate_assets_list_from_text_protos(
         name,
+        classroom_file_names,
         classroom_list_file_names,
         topic_file_names,
         subtopic_file_names,
@@ -17,6 +18,7 @@ def generate_assets_list_from_text_protos(
 
     Args:
         name: str. The name of this generation instance. This will be a prefix for derived targets.
+        classroom_file_names: list of str. The list of classroom file names.
         classroom_list_file_names: list of str. The classroom list file names.
         topic_file_names: list of str. The list of topic file names.
         subtopic_file_names: list of str. The list of subtopic file names.
@@ -31,8 +33,17 @@ def generate_assets_list_from_text_protos(
         name = name,
         names = classroom_list_file_names,
         proto_dep_name = "topic",
-        proto_type_name = "ClassroomList",
-        name_prefix = "classroom_list",
+        proto_type_name = "ClassroomIdList",
+        name_prefix = "classroom_id_list",
+        asset_dir = "src/main/assets",
+        proto_dep_bazel_target_prefix = "//model/src/main/proto",
+        proto_package = "model",
+    ) + generate_proto_binary_assets(
+        name = name,
+        names = classroom_file_names,
+        proto_dep_name = "topic",
+        proto_type_name = "ClassroomRecord",
+        name_prefix = "classroom_record",
         asset_dir = "src/main/assets",
         proto_dep_bazel_target_prefix = "//model/src/main/proto",
         proto_package = "model",
diff --git a/domain/src/main/assets/classrooms.json b/domain/src/main/assets/classrooms.json
index eb92a2f7094..8a0d9bb44c3 100644
--- a/domain/src/main/assets/classrooms.json
+++ b/domain/src/main/assets/classrooms.json
@@ -1,12 +1,3 @@
 {
-  "classrooms": [{
-    "id": "test_classroom_id_0",
-    "topic_prerequisites": {
-      "test_topic_id_0": ["GJ2rLXRKD5hw"],
-      "test_topic_id_1": ["test_topic_id_0", "omzF4oqgeTXd"],
-      "test_topic_id_2": [],
-      "GJ2rLXRKD5hw": [],
-      "omzF4oqgeTXd": []
-    }
-  }]
+  "classroom_id_list": ["test_classroom_id_0", "test_classroom_id_1", "test_classroom_id_2"]
 }
diff --git a/domain/src/main/assets/classrooms.textproto b/domain/src/main/assets/classrooms.textproto
index 05b4af4eb0a..5db8407d9a8 100644
--- a/domain/src/main/assets/classrooms.textproto
+++ b/domain/src/main/assets/classrooms.textproto
@@ -1,31 +1,3 @@
-classrooms {
-  id: "test_classroom_id_0"
-  topic_prerequisites {
-    key: "test_topic_id_0"
-    value {
-      topic_ids: "GJ2rLXRKD5hw"
-    }
-  }
-  topic_prerequisites {
-    key: "test_topic_id_1"
-    value {
-      topic_ids: "test_topic_id_0"
-      topic_ids: "omzF4oqgeTXd"
-    }
-  }
-  topic_prerequisites {
-    key: "test_topic_id_2"
-    value {
-    }
-  }
-  topic_prerequisites {
-    key: "GJ2rLXRKD5hw"
-    value {
-    }
-  }
-  topic_prerequisites {
-    key: "omzF4oqgeTXd"
-    value {
-    }
-  }
-}
+classroom_ids: "test_classroom_id_0"
+classroom_ids: "test_classroom_id_1"
+classroom_ids: "test_classroom_id_2"
diff --git a/domain/src/main/assets/test_classroom_id_0.json b/domain/src/main/assets/test_classroom_id_0.json
new file mode 100644
index 00000000000..97c33f70bf2
--- /dev/null
+++ b/domain/src/main/assets/test_classroom_id_0.json
@@ -0,0 +1,13 @@
+{
+  "classroom_id": "test_classroom_id_0",
+  "classroom_title": {
+    "content_id": "classroom_title",
+    "html": "Science"
+  },
+  "thumbnail_bg_color": "#00FFFFFF",
+  "thumbnail_filename": "",
+  "topic_prerequisites": {
+    "test_topic_id_0": ["GJ2rLXRKD5hw"],
+    "test_topic_id_1": ["test_topic_id_0", "omzF4oqgeTXd"]
+  }
+}
diff --git a/domain/src/main/assets/test_classroom_id_0.textproto b/domain/src/main/assets/test_classroom_id_0.textproto
new file mode 100644
index 00000000000..c98e7ba4ac3
--- /dev/null
+++ b/domain/src/main/assets/test_classroom_id_0.textproto
@@ -0,0 +1,20 @@
+id: "test_classroom_id_0"
+translatable_title {
+  content_id: "classroom_title"
+  html: "Science"
+}
+classroom_thumbnail {
+}
+topic_prerequisites {
+  key: "test_topic_id_0"
+  value {
+    topic_ids: "GJ2rLXRKD5hw"
+  }
+}
+topic_prerequisites {
+  key: "test_topic_id_1"
+  value {
+    topic_ids: "test_topic_id_0"
+    topic_ids: "omzF4oqgeTXd"
+  }
+}
diff --git a/domain/src/main/assets/test_classroom_id_1.json b/domain/src/main/assets/test_classroom_id_1.json
new file mode 100644
index 00000000000..53043956ff0
--- /dev/null
+++ b/domain/src/main/assets/test_classroom_id_1.json
@@ -0,0 +1,13 @@
+{
+  "classroom_id": "test_classroom_id_1",
+  "classroom_title": {
+    "content_id": "classroom_title",
+    "html": "Maths"
+  },
+  "thumbnail_bg_color": "#00FFFFFF",
+  "thumbnail_filename": "",
+  "topic_prerequisites": {
+    "GJ2rLXRKD5hw": [],
+    "omzF4oqgeTXd": []
+  }
+}
diff --git a/domain/src/main/assets/test_classroom_id_1.textproto b/domain/src/main/assets/test_classroom_id_1.textproto
new file mode 100644
index 00000000000..84d10414493
--- /dev/null
+++ b/domain/src/main/assets/test_classroom_id_1.textproto
@@ -0,0 +1,17 @@
+id: "test_classroom_id_1"
+translatable_title {
+  content_id: "classroom_title"
+  html: "Maths"
+}
+classroom_thumbnail {
+}
+topic_prerequisites {
+  key: "GJ2rLXRKD5hw"
+  value {
+  }
+}
+topic_prerequisites {
+  key: "omzF4oqgeTXd"
+  value {
+  }
+}
diff --git a/domain/src/main/assets/test_classroom_id_2.json b/domain/src/main/assets/test_classroom_id_2.json
new file mode 100644
index 00000000000..55e7e9d9fe7
--- /dev/null
+++ b/domain/src/main/assets/test_classroom_id_2.json
@@ -0,0 +1,12 @@
+{
+  "classroom_id": "test_classroom_id_2",
+  "classroom_title": {
+    "content_id": "classroom_title",
+    "html": "English"
+  },
+  "thumbnail_bg_color": "#00FFFFFF",
+  "thumbnail_filename": "",
+  "topic_prerequisites": {
+    "test_topic_id_2": []
+  }
+}
diff --git a/domain/src/main/assets/test_classroom_id_2.textproto b/domain/src/main/assets/test_classroom_id_2.textproto
new file mode 100644
index 00000000000..a95ec162147
--- /dev/null
+++ b/domain/src/main/assets/test_classroom_id_2.textproto
@@ -0,0 +1,12 @@
+id: "test_classroom_id_2"
+translatable_title {
+  content_id: "classroom_title"
+  html: "English"
+}
+classroom_thumbnail {
+}
+topic_prerequisites {
+  key: "test_topic_id_2"
+  value {
+  }
+}
diff --git a/domain/src/main/java/org/oppia/android/domain/topic/TopicListController.kt b/domain/src/main/java/org/oppia/android/domain/topic/TopicListController.kt
index 8936feb3d98..067763a9963 100644
--- a/domain/src/main/java/org/oppia/android/domain/topic/TopicListController.kt
+++ b/domain/src/main/java/org/oppia/android/domain/topic/TopicListController.kt
@@ -5,7 +5,7 @@ import org.json.JSONObject
 import org.oppia.android.app.model.ChapterPlayState
 import org.oppia.android.app.model.ChapterProgress
 import org.oppia.android.app.model.ChapterSummary
-import org.oppia.android.app.model.ClassroomList
+import org.oppia.android.app.model.ClassroomIdList
 import org.oppia.android.app.model.ClassroomRecord
 import org.oppia.android.app.model.ClassroomRecord.TopicIdList
 import org.oppia.android.app.model.ComingSoonTopicList
@@ -59,6 +59,12 @@ const val FRACTIONS_TOPIC_ID = "GJ2rLXRKD5hw"
 const val SUBTOPIC_TOPIC_ID = 1
 const val SUBTOPIC_TOPIC_ID_2 = 2
 const val RATIOS_TOPIC_ID = "omzF4oqgeTXd"
+
+// TODO(#5344): Move these classroom ids to [ClassroomController].
+const val TEST_CLASSROOM_ID_0 = "test_classroom_id_0"
+const val TEST_CLASSROOM_ID_1 = "test_classroom_id_1"
+const val TEST_CLASSROOM_ID_2 = "test_classroom_id_2"
+
 val TOPIC_THUMBNAILS = mapOf(
   FRACTIONS_TOPIC_ID to createTopicThumbnail0(),
   RATIOS_TOPIC_ID to createTopicThumbnail1(),
@@ -135,7 +141,7 @@ class TopicListController @Inject constructor(
 
   private fun createTopicList(contentLocale: OppiaLocale.ContentLocale): TopicList {
     return if (loadLessonProtosFromAssets) {
-      val topicIdList = loadCombinedClassroomTopicList()
+      val topicIdList = loadCombinedClassroomsTopicIdList()
       return TopicList.newBuilder().apply {
         // Only include topics currently playable in the topic list.
         addAllTopicSummary(
@@ -150,7 +156,7 @@ class TopicListController @Inject constructor(
   }
 
   private fun loadTopicListFromJson(contentLocale: OppiaLocale.ContentLocale): TopicList {
-    val topicIdList = loadCombinedClassroomTopicList()
+    val topicIdList = loadCombinedClassroomsTopicIdList()
     val topicListBuilder = TopicList.newBuilder()
     for (topicId in topicIdList) {
       val ephemeralSummary = createEphemeralTopicSummary(topicId, contentLocale)
@@ -164,7 +170,7 @@ class TopicListController @Inject constructor(
   }
 
   private fun computeComingSoonTopicList(): ComingSoonTopicList {
-    val topicIdList = loadCombinedClassroomTopicList()
+    val topicIdList = loadCombinedClassroomsTopicIdList()
     val comingSoonTopicListBuilder = ComingSoonTopicList.newBuilder()
     for (topicId in topicIdList) {
       val upcomingTopicSummary = createUpcomingTopicSummary(topicId)
@@ -183,12 +189,18 @@ class TopicListController @Inject constructor(
     contentLocale: OppiaLocale.ContentLocale
   ): EphemeralTopicSummary {
     val topicSummary = createTopicSummary(topicId)
+    val classroomRecord = loadClassroomById(topicSummary.classroomId)
     return EphemeralTopicSummary.newBuilder().apply {
       this.topicSummary = topicSummary
       writtenTranslationContext =
         translationController.computeWrittenTranslationContext(
           topicSummary.writtenTranslationsMap, contentLocale
         )
+      classroomWrittenTranslationContext =
+        translationController.computeWrittenTranslationContext(
+          classroomRecord.writtenTranslationsMap, contentLocale
+        )
+      classroomTitle = classroomRecord.translatableTitle
     }.build()
   }
 
@@ -209,6 +221,7 @@ class TopicListController @Inject constructor(
         this.topicId = topicId
         putAllWrittenTranslations(topicRecord.writtenTranslationsMap)
         title = topicRecord.translatableTitle
+        classroomId = getClassroomIdByTopicId(topicId)
         totalChapterCount = storyRecords.map { it.chaptersList.size }.sum()
         topicThumbnail = topicRecord.topicThumbnail
         topicPlayAvailability = if (topicRecord.isPublished) {
@@ -250,10 +263,12 @@ class TopicListController @Inject constructor(
       contentId = "title"
       html = jsonObject.getStringFromObject("topic_name")
     }.build()
+    val classroomId = getClassroomIdByTopicId(topicId)
     // No written translations are included since none are retrieved from JSON.
     return TopicSummary.newBuilder()
       .setTopicId(topicId)
       .setTitle(topicTitle)
+      .setClassroomId(classroomId)
       .setVersion(jsonObject.optInt("version"))
       .setTotalChapterCount(totalChapterCount)
       .setTopicThumbnail(createTopicThumbnailFromJson(jsonObject))
@@ -285,9 +300,21 @@ class TopicListController @Inject constructor(
       html = jsonObject.getStringFromObject("topic_name")
     }.build()
 
+    val classroomId = getClassroomIdByTopicId(topicId)
+
+    val classroomJsonObject = jsonAssetRetriever.loadJsonFromAsset("$classroomId.json")!!
+    val classroomTitle = classroomJsonObject.getJSONObject("classroom_title").let {
+      SubtitledHtml.newBuilder().apply {
+        contentId = it.getStringFromObject("content_id")
+        html = it.getStringFromObject("html")
+      }.build()
+    }
+
     // No written translations are included since none are retrieved from JSON.
     return UpcomingTopic.newBuilder().setTopicId(topicId)
       .setTitle(topicTitle)
+      .setClassroomId(classroomId)
+      .setClassroomTitle(classroomTitle)
       .setVersion(jsonObject.optInt("version"))
       .setTopicPlayAvailability(topicPlayAvailability)
       .setLessonThumbnail(createTopicThumbnailFromJson(jsonObject))
@@ -345,6 +372,10 @@ class TopicListController @Inject constructor(
 
     sortedTopicProgressList.forEach { topicProgress ->
       val topic = topicController.retrieveTopic(topicProgress.topicId)
+      val classroom = topic?.topicId?.let { topicId ->
+        val classroomId = getClassroomIdByTopicId(topicId)
+        loadClassroomById(classroomId)
+      } ?: ClassroomRecord.getDefaultInstance()
       // Ignore topics that are no longer on the device, or that have been unpublished.
       if (topic?.topicPlayAvailability?.availabilityCase == AVAILABLE_TO_PLAY_NOW) {
         val isTopicConsideredCompleted = topic.hasAtLeastOneStoryCompleted(topicProgress)
@@ -373,7 +404,8 @@ class TopicListController @Inject constructor(
                   topic,
                   isTopicConsideredCompleted,
                   storyProgress.chapterProgressMap,
-                  contentLocale
+                  contentLocale,
+                  classroom
                 )?.let { promotedStory ->
                   playedPromotedStoryList.add(promotedStory)
                 }
@@ -393,7 +425,8 @@ class TopicListController @Inject constructor(
                   topic,
                   isTopicConsideredCompleted,
                   storyProgress.chapterProgressMap,
-                  contentLocale
+                  contentLocale,
+                  classroom
                 )?.let { promotedStory ->
                   playedPromotedStoryList.add(promotedStory)
                 }
@@ -460,7 +493,8 @@ class TopicListController @Inject constructor(
     topic: Topic,
     isTopicConsideredCompleted: Boolean,
     chapterProgressMap: Map<String, ChapterProgress>,
-    contentLocale: OppiaLocale.ContentLocale
+    contentLocale: OppiaLocale.ContentLocale,
+    classroom: ClassroomRecord,
   ): PromotedStory? {
     val recentlyPlayerChapterSummary: ChapterSummary? =
       story.chapterList.find { chapterSummary ->
@@ -475,7 +509,8 @@ class TopicListController @Inject constructor(
         recentlyPlayerChapterSummary,
         isTopicConsideredCompleted,
         chapterProgressMap[recentlyPlayerChapterSummary.explorationId],
-        contentLocale
+        contentLocale,
+        classroom
       )
     }
     return null
@@ -489,7 +524,8 @@ class TopicListController @Inject constructor(
     topic: Topic,
     isTopicConsideredCompleted: Boolean,
     chapterProgressMap: Map<String, ChapterProgress>,
-    contentLocale: OppiaLocale.ContentLocale
+    contentLocale: OppiaLocale.ContentLocale,
+    classroom: ClassroomRecord,
   ): PromotedStory? {
     val lastChapterSummary: ChapterSummary? =
       story.chapterList.find { chapterSummary ->
@@ -507,7 +543,8 @@ class TopicListController @Inject constructor(
           nextChapterSummary,
           isTopicConsideredCompleted,
           chapterProgressMap[nextChapterSummary.explorationId],
-          contentLocale
+          contentLocale,
+          classroom
         )
       }
     }
@@ -522,8 +559,15 @@ class TopicListController @Inject constructor(
    * Returns a list of topic IDs for which the specified topic ID expects to be completed before
    * being suggested.
    */
-  private fun retrieveTopicDependencies(topicId: String): List<String> =
-    loadClassroom().topicPrerequisitesMap.getValue(topicId).topicIdsList
+  private fun retrieveTopicDependencies(topicId: String): List<String> {
+    val classrooms = loadClassrooms()
+    for (classroom in classrooms) {
+      if (classroom.topicPrerequisitesMap.containsKey(topicId)) {
+        return classroom.topicPrerequisitesMap.getValue(topicId).topicIdsList
+      }
+    }
+    throw IllegalArgumentException("Topic ID $topicId not found in any classroom.")
+  }
 
   /*
   * Explanation for logic:
@@ -549,7 +593,7 @@ class TopicListController @Inject constructor(
     contentLocale: OppiaLocale.ContentLocale
   ): List<PromotedStory> {
     return if (loadLessonProtosFromAssets) {
-      val topicIdList = loadCombinedClassroomTopicList()
+      val topicIdList = loadCombinedClassroomsTopicIdList()
       return computeSuggestedStoriesForTopicIds(topicProgressList, topicIdList, contentLocale)
     } else computeSuggestedStoriesFromJson(topicProgressList, contentLocale)
   }
@@ -559,7 +603,7 @@ class TopicListController @Inject constructor(
     contentLocale: OppiaLocale.ContentLocale
   ): List<PromotedStory> {
     // All topics that could potentially be recommended.
-    val topicIdList = loadCombinedClassroomTopicList()
+    val topicIdList = loadCombinedClassroomsTopicIdList()
     return computeSuggestedStoriesForTopicIds(topicProgressList, topicIdList, contentLocale)
   }
 
@@ -671,6 +715,11 @@ class TopicListController @Inject constructor(
           assetName = firstStoryId,
           baseMessage = StoryRecord.getDefaultInstance()
         )
+      val classroomRecord =
+        assetRepository.loadProtoFromLocalAssets(
+          assetName = getClassroomIdByTopicId(topicId),
+          baseMessage = ClassroomRecord.getDefaultInstance()
+        )
       return PromotedStory.newBuilder().apply {
         storyId = firstStoryId
         storyWrittenTranslationContext =
@@ -681,9 +730,15 @@ class TopicListController @Inject constructor(
           translationController.computeWrittenTranslationContext(
             topicRecord.writtenTranslationsMap, contentLocale
           )
+        classroomWrittenTranslationContext =
+          translationController.computeWrittenTranslationContext(
+            classroomRecord.writtenTranslationsMap, contentLocale
+          )
         storyTitle = storyRecord.translatableStoryName
         this.topicId = topicId
         topicTitle = topicRecord.translatableTitle
+        classroomId = classroomRecord.id
+        classroomTitle = classroomRecord.translatableTitle
         completedChapterCount = 0
         totalChapterCount = storyRecord.chaptersCount
         lessonThumbnail = storyRecord.storyThumbnail
@@ -731,6 +786,19 @@ class TopicListController @Inject constructor(
           html = it
         }.build()
       } ?: SubtitledHtml.getDefaultInstance()
+
+      val classroomId = getClassroomIdByTopicId(topicId)
+
+      val classroomJson = jsonAssetRetriever.loadJsonFromAsset("$classroomId.json")
+      if (classroomJson!!.optString("classroom_title").isNullOrEmpty()) return null
+
+      val classroomTitle = classroomJson.getJSONObject("classroom_title").let {
+        SubtitledHtml.newBuilder().apply {
+          contentId = it.getStringFromObject("content_id")
+          html = it.getStringFromObject("html")
+        }.build()
+      }
+
       // No written translations are included for the topic since its name is directly fetched from
       // the JSON (and the JSON doesn't include translations for these properties, anyway).
       val promotedStoryBuilder = PromotedStory.newBuilder()
@@ -739,6 +807,8 @@ class TopicListController @Inject constructor(
         .setLessonThumbnail(storySummary.storyThumbnail)
         .setTopicId(topicId)
         .setTopicTitle(topicTitle)
+        .setClassroomId(classroomId)
+        .setClassroomTitle(classroomTitle)
         .setCompletedChapterCount(0)
         .setTotalChapterCount(totalChapterCount)
       if (storySummary.chapterList.isNotEmpty()) {
@@ -758,7 +828,8 @@ class TopicListController @Inject constructor(
     nextChapterSummary: ChapterSummary,
     isTopicConsideredCompleted: Boolean,
     nextChapterProgress: ChapterProgress?,
-    contentLocale: OppiaLocale.ContentLocale
+    contentLocale: OppiaLocale.ContentLocale,
+    classroom: ClassroomRecord,
   ): PromotedStory {
     val storySummary = topic.storyList.find { summary -> summary.storyId == storyId }!!
     // If the chapterProgress equals null that means the chapter has no progress associated with
@@ -780,10 +851,17 @@ class TopicListController @Inject constructor(
           nextChapterSummary.writtenTranslationsMap, contentLocale
         )
       )
+      .setClassroomWrittenTranslationContext(
+        translationController.computeWrittenTranslationContext(
+          classroom.writtenTranslationsMap, contentLocale
+        )
+      )
       .setStoryTitle(storySummary.storyTitle)
       .setLessonThumbnail(storySummary.storyThumbnail)
       .setTopicId(topic.topicId)
       .setTopicTitle(topic.title)
+      .setClassroomId(classroom.id)
+      .setClassroomTitle(classroom.translatableTitle)
       .setCompletedChapterCount(completedChapterCount)
       .setTotalChapterCount(totalChapterCount)
       .setIsTopicLearned(isTopicConsideredCompleted)
@@ -793,25 +871,71 @@ class TopicListController @Inject constructor(
       .build()
   }
 
+  private fun getClassroomIdByTopicId(topicId: String): String {
+    var classroomId = TEST_CLASSROOM_ID_0
+    loadClassrooms().forEach {
+      if (it.topicPrerequisitesMap.keys.contains(topicId)) {
+        classroomId = it.id
+      }
+    }
+    return classroomId
+  }
+
   // TODO(#5344): Remove this in favor of per-classroom data handling.
-  private fun loadClassroom(): ClassroomRecord {
+  private fun loadClassrooms(): List<ClassroomRecord> {
     return if (loadLessonProtosFromAssets) {
-      return assetRepository.loadProtoFromLocalAssets(
+      assetRepository.loadProtoFromLocalAssets(
         assetName = "classrooms",
-        baseMessage = ClassroomList.getDefaultInstance()
-      ).classroomsList.single() // Only one record is currently expected.
-    } else loadClassroomFromJson()
+        baseMessage = ClassroomIdList.getDefaultInstance()
+      ).classroomIdsList.map { classroomId ->
+        loadClassroomById(classroomId)
+      }
+    } else loadClassroomsFromJson()
+  }
+
+  // TODO(#5344): Remove this in favor of per-classroom data handling.
+  private fun loadClassroomsFromJson(): List<ClassroomRecord> {
+    // Load the classrooms.json file.
+    val classroomIdsObj = jsonAssetRetriever.loadJsonFromAsset("classrooms.json")
+    checkNotNull(classroomIdsObj) { "Failed to load classrooms.json." }
+    val classroomIds = classroomIdsObj.optJSONArray("classroom_id_list")
+    checkNotNull(classroomIds) { "classrooms.json is missing classroom IDs." }
+
+    // Initialize a list to store the [ClassroomRecord]s.
+    val classroomRecords = mutableListOf<ClassroomRecord>()
+
+    // Iterate over all classroomIds and load each classroom's JSON.
+    for (i in 0 until classroomIds.length()) {
+      val classroomId = checkNotNull(classroomIds.optString(i)) {
+        "Expected non-null classroom ID at index $i."
+      }
+      val classroomRecord = loadClassroomById(classroomId)
+      classroomRecords.add(classroomRecord)
+    }
+
+    return classroomRecords
+  }
+
+  // TODO(#5344): Move this to classroom controller.
+  private fun loadClassroomById(classroomId: String): ClassroomRecord {
+    return if (loadLessonProtosFromAssets) {
+      assetRepository.tryLoadProtoFromLocalAssets(
+        assetName = classroomId,
+        defaultMessage = ClassroomRecord.getDefaultInstance()
+      ) ?: ClassroomRecord.getDefaultInstance()
+    } else loadClassroomByIdFromJson(classroomId)
   }
 
   // TODO(#5344): Remove this in favor of per-classroom data handling.
-  private fun loadClassroomFromJson(): ClassroomRecord {
-    val classroomsObj = jsonAssetRetriever.loadJsonFromAsset("classrooms.json")
-    checkNotNull(classroomsObj) { "Failed to load classrooms.json." }
-    val classroomArray = classroomsObj.optJSONArray("classrooms")
-    checkNotNull(classroomArray) { "classrooms.json missing classrooms array." }
-    check(classroomArray.length() == 1) { "Expected classrooms.json to have one single classroom." }
-    val classroom = checkNotNull(classroomArray.optJSONObject(0)) { "Expected non-null classroom." }
-    val topicPrereqsObj = checkNotNull(classroom.optJSONObject("topic_prerequisites")) {
+  private fun loadClassroomByIdFromJson(classroomId: String): ClassroomRecord {
+    // Load the classroom obj.
+    val classroomObj = jsonAssetRetriever.loadJsonFromAsset("$classroomId.json")
+    checkNotNull(classroomObj) { "Failed to load $classroomId.json." }
+
+    val classroomTitle = classroomObj.getJSONObject("classroom_title")
+
+    // Load the topic prerequisite map.
+    val topicPrereqsObj = checkNotNull(classroomObj.optJSONObject("topic_prerequisites")) {
       "Expected classroom to have non-null topic_prerequisites."
     }
     val topicPrereqs = topicPrereqsObj.keys().asSequence().associateWith { topicId ->
@@ -825,8 +949,14 @@ class TopicListController @Inject constructor(
       }
     }
     return ClassroomRecord.newBuilder().apply {
-      this.id = checkNotNull(classroom.optString("id")) { "Expected classroom to have ID." }
-      this.putAllTopicPrerequisites(
+      id = checkNotNull(classroomObj.optString("classroom_id")) {
+        "Expected classroom to have ID."
+      }
+      translatableTitle = SubtitledHtml.newBuilder().apply {
+        contentId = classroomTitle.getStringFromObject("content_id")
+        html = classroomTitle.getStringFromObject("html")
+      }.build()
+      putAllTopicPrerequisites(
         topicPrereqs.mapValues { (_, topicIds) ->
           TopicIdList.newBuilder().apply {
             addAllTopicIds(topicIds)
@@ -837,8 +967,8 @@ class TopicListController @Inject constructor(
   }
 
   // TODO(#5344): Remove this in favor of per-classroom data handling.
-  private fun loadCombinedClassroomTopicList(): List<String> =
-    loadClassroom().topicPrerequisitesMap.keys.toList()
+  private fun loadCombinedClassroomsTopicIdList(): List<String> =
+    loadClassrooms().flatMap { it.topicPrerequisitesMap.keys.toList() }
 }
 
 internal fun createTopicThumbnailFromJson(topicJsonObject: JSONObject): LessonThumbnail {
diff --git a/domain/src/test/java/org/oppia/android/domain/topic/TopicListControllerTest.kt b/domain/src/test/java/org/oppia/android/domain/topic/TopicListControllerTest.kt
index 28bcf2e44cd..29006f7e528 100644
--- a/domain/src/test/java/org/oppia/android/domain/topic/TopicListControllerTest.kt
+++ b/domain/src/test/java/org/oppia/android/domain/topic/TopicListControllerTest.kt
@@ -108,6 +108,15 @@ class TopicListControllerTest {
     assertThat(firstTopic.title.html).isEqualTo("First Test Topic")
   }
 
+  @Test
+  fun testRetrieveTopicList_firstTopic_hasCorrectClassroomInfo() {
+    val topicList = retrieveTopicList()
+
+    val firstTopic = topicList.getTopicSummary(0)
+    assertThat(firstTopic.topicSummary.classroomId).isEqualTo(TEST_CLASSROOM_ID_0)
+    assertThat(firstTopic.classroomTitle.html).isEqualTo("Science")
+  }
+
   @Test
   fun testRetrieveTopicList_firstTopic_hasCorrectLessonCount() {
     val topicList = retrieveTopicList()
@@ -125,6 +134,15 @@ class TopicListControllerTest {
     assertThat(secondTopic.title.html).isEqualTo("Second Test Topic")
   }
 
+  @Test
+  fun testRetrieveTopicList_secondTopic_hasCorrectClassroomInfo() {
+    val topicList = retrieveTopicList()
+
+    val firstTopic = topicList.getTopicSummary(1)
+    assertThat(firstTopic.topicSummary.classroomId).isEqualTo(TEST_CLASSROOM_ID_0)
+    assertThat(firstTopic.classroomTitle.html).isEqualTo("Science")
+  }
+
   @Test
   fun testRetrieveTopicList_secondTopic_hasCorrectLessonCount() {
     val topicList = retrieveTopicList()
@@ -142,6 +160,15 @@ class TopicListControllerTest {
     assertThat(fractionsTopic.title.html).isEqualTo("Fractions")
   }
 
+  @Test
+  fun testRetrieveTopicList_fractionsTopic_hasCorrectClassroomInfo() {
+    val topicList = retrieveTopicList()
+
+    val firstTopic = topicList.getTopicSummary(2)
+    assertThat(firstTopic.topicSummary.classroomId).isEqualTo(TEST_CLASSROOM_ID_1)
+    assertThat(firstTopic.classroomTitle.html).isEqualTo("Maths")
+  }
+
   @Test
   fun testRetrieveTopicList_fractionsTopic_hasCorrectLessonCount() {
     val topicList = retrieveTopicList()
@@ -159,6 +186,15 @@ class TopicListControllerTest {
     assertThat(ratiosTopic.title.html).isEqualTo("Ratios and Proportional Reasoning")
   }
 
+  @Test
+  fun testRetrieveTopicList_ratiosTopic_hasCorrectClassroomInfo() {
+    val topicList = retrieveTopicList()
+
+    val firstTopic = topicList.getTopicSummary(3)
+    assertThat(firstTopic.topicSummary.classroomId).isEqualTo(TEST_CLASSROOM_ID_1)
+    assertThat(firstTopic.classroomTitle.html).isEqualTo("Maths")
+  }
+
   @Test
   fun testRetrieveTopicList_ratiosTopic_hasCorrectLessonCount() {
     val topicList = retrieveTopicList()
@@ -679,6 +715,8 @@ class TopicListControllerTest {
     assertThat(promotedStory.storyId).isEqualTo(TEST_STORY_ID_0)
     assertThat(promotedStory.topicId).isEqualTo(TEST_TOPIC_ID_0)
     assertThat(promotedStory.topicTitle.html).isEqualTo("First Test Topic")
+    assertThat(promotedStory.classroomId).isEqualTo(TEST_CLASSROOM_ID_0)
+    assertThat(promotedStory.classroomTitle.html).isEqualTo("Science")
     assertThat(promotedStory.nextChapterTitle.html).isEqualTo("Prototype Exploration")
     assertThat(promotedStory.completedChapterCount).isEqualTo(0)
     assertThat(promotedStory.isTopicLearned).isFalse()
@@ -690,6 +728,8 @@ class TopicListControllerTest {
     assertThat(promotedStory.storyId).isEqualTo(TEST_STORY_ID_0)
     assertThat(promotedStory.topicId).isEqualTo(TEST_TOPIC_ID_0)
     assertThat(promotedStory.topicTitle.html).isEqualTo("First Test Topic")
+    assertThat(promotedStory.classroomId).isEqualTo(TEST_CLASSROOM_ID_0)
+    assertThat(promotedStory.classroomTitle.html).isEqualTo("Science")
     assertThat(promotedStory.nextChapterTitle.html).isEqualTo("Prototype Exploration")
     assertThat(promotedStory.completedChapterCount).isEqualTo(0)
     assertThat(promotedStory.isTopicLearned).isFalse()
@@ -701,6 +741,8 @@ class TopicListControllerTest {
     assertThat(promotedStory.storyId).isEqualTo(TEST_STORY_ID_2)
     assertThat(promotedStory.topicId).isEqualTo(TEST_TOPIC_ID_1)
     assertThat(promotedStory.topicTitle.html).isEqualTo("Second Test Topic")
+    assertThat(promotedStory.classroomId).isEqualTo(TEST_CLASSROOM_ID_0)
+    assertThat(promotedStory.classroomTitle.html).isEqualTo("Science")
     assertThat(promotedStory.nextChapterTitle.html).isEqualTo("Fifth Exploration")
     assertThat(promotedStory.completedChapterCount).isEqualTo(0)
     assertThat(promotedStory.isTopicLearned).isFalse()
@@ -712,6 +754,8 @@ class TopicListControllerTest {
     assertThat(promotedStory.storyId).isEqualTo(FRACTIONS_STORY_ID_0)
     assertThat(promotedStory.topicId).isEqualTo(FRACTIONS_TOPIC_ID)
     assertThat(promotedStory.topicTitle.html).isEqualTo("Fractions")
+    assertThat(promotedStory.classroomId).isEqualTo(TEST_CLASSROOM_ID_1)
+    assertThat(promotedStory.classroomTitle.html).isEqualTo("Maths")
     assertThat(promotedStory.nextChapterTitle.html).isEqualTo("What is a Fraction?")
     assertThat(promotedStory.completedChapterCount).isEqualTo(0)
     assertThat(promotedStory.isTopicLearned).isFalse()
@@ -723,6 +767,8 @@ class TopicListControllerTest {
     assertThat(promotedStory.storyId).isEqualTo(FRACTIONS_STORY_ID_0)
     assertThat(promotedStory.topicId).isEqualTo(FRACTIONS_TOPIC_ID)
     assertThat(promotedStory.topicTitle.html).isEqualTo("Fractions")
+    assertThat(promotedStory.classroomId).isEqualTo(TEST_CLASSROOM_ID_1)
+    assertThat(promotedStory.classroomTitle.html).isEqualTo("Maths")
     assertThat(promotedStory.nextChapterTitle.html).isEqualTo("What is a Fraction?")
     assertThat(promotedStory.completedChapterCount).isEqualTo(0)
     assertThat(promotedStory.isTopicLearned).isFalse()
@@ -734,6 +780,8 @@ class TopicListControllerTest {
     assertThat(promotedStory.storyId).isEqualTo(FRACTIONS_STORY_ID_0)
     assertThat(promotedStory.topicId).isEqualTo(FRACTIONS_TOPIC_ID)
     assertThat(promotedStory.topicTitle.html).isEqualTo("Fractions")
+    assertThat(promotedStory.classroomId).isEqualTo(TEST_CLASSROOM_ID_1)
+    assertThat(promotedStory.classroomTitle.html).isEqualTo("Maths")
     assertThat(promotedStory.nextChapterTitle.html).isEqualTo("The Meaning of Equal Parts")
     assertThat(promotedStory.completedChapterCount).isEqualTo(1)
     assertThat(promotedStory.totalChapterCount).isEqualTo(2)
@@ -744,6 +792,8 @@ class TopicListControllerTest {
     assertThat(promotedStory.storyId).isEqualTo(RATIOS_STORY_ID_0)
     assertThat(promotedStory.topicId).isEqualTo(RATIOS_TOPIC_ID)
     assertThat(promotedStory.nextChapterTitle.html).isEqualTo("What is a Ratio?")
+    assertThat(promotedStory.classroomId).isEqualTo(TEST_CLASSROOM_ID_1)
+    assertThat(promotedStory.classroomTitle.html).isEqualTo("Maths")
     assertThat(promotedStory.topicTitle.html).isEqualTo("Ratios and Proportional Reasoning")
     assertThat(promotedStory.completedChapterCount).isEqualTo(0)
     assertThat(promotedStory.isTopicLearned).isFalse()
@@ -755,6 +805,8 @@ class TopicListControllerTest {
     assertThat(promotedStory.storyId).isEqualTo(RATIOS_STORY_ID_0)
     assertThat(promotedStory.topicId).isEqualTo(RATIOS_TOPIC_ID)
     assertThat(promotedStory.nextChapterTitle.html).isEqualTo("What is a Ratio?")
+    assertThat(promotedStory.classroomId).isEqualTo(TEST_CLASSROOM_ID_1)
+    assertThat(promotedStory.classroomTitle.html).isEqualTo("Maths")
     assertThat(promotedStory.topicTitle.html).isEqualTo("Ratios and Proportional Reasoning")
     assertThat(promotedStory.completedChapterCount).isEqualTo(0)
     assertThat(promotedStory.isTopicLearned).isFalse()
@@ -767,6 +819,8 @@ class TopicListControllerTest {
     assertThat(promotedStory.topicId).isEqualTo(RATIOS_TOPIC_ID)
     assertThat(promotedStory.nextChapterTitle.html).isEqualTo("Order is important")
     assertThat(promotedStory.topicTitle.html).isEqualTo("Ratios and Proportional Reasoning")
+    assertThat(promotedStory.classroomId).isEqualTo(TEST_CLASSROOM_ID_1)
+    assertThat(promotedStory.classroomTitle.html).isEqualTo("Maths")
     assertThat(promotedStory.completedChapterCount).isEqualTo(1)
     assertThat(promotedStory.isTopicLearned).isFalse()
     assertThat(promotedStory.totalChapterCount).isEqualTo(2)
@@ -775,6 +829,8 @@ class TopicListControllerTest {
   private fun verifyUpcomingTopic1(upcomingTopic: UpcomingTopic) {
     assertThat(upcomingTopic.topicId).isEqualTo(UPCOMING_TOPIC_ID_1)
     assertThat(upcomingTopic.title.html).isEqualTo("Third Test Topic")
+    assertThat(upcomingTopic.classroomId).isEqualTo(TEST_CLASSROOM_ID_2)
+    assertThat(upcomingTopic.classroomTitle.html).isEqualTo("English")
   }
 
   private fun verifyOngoingStoryAsRatioStory1Exploration2(
@@ -786,6 +842,8 @@ class TopicListControllerTest {
     assertThat(promotedStory.topicId).isEqualTo(RATIOS_TOPIC_ID)
     assertThat(promotedStory.nextChapterTitle.html).isEqualTo("Equivalent Ratios")
     assertThat(promotedStory.topicTitle.html).isEqualTo("Ratios and Proportional Reasoning")
+    assertThat(promotedStory.classroomId).isEqualTo(TEST_CLASSROOM_ID_1)
+    assertThat(promotedStory.classroomTitle.html).isEqualTo("Maths")
     assertThat(promotedStory.completedChapterCount).isEqualTo(0)
     assertThat(promotedStory.isTopicLearned).isEqualTo(expectedToBeLearned)
     assertThat(promotedStory.totalChapterCount).isEqualTo(2)
@@ -797,6 +855,8 @@ class TopicListControllerTest {
     assertThat(promotedStory.topicId).isEqualTo(RATIOS_TOPIC_ID)
     assertThat(promotedStory.nextChapterTitle.html).isEqualTo("Writing Ratios in Simplest Form")
     assertThat(promotedStory.topicTitle.html).isEqualTo("Ratios and Proportional Reasoning")
+    assertThat(promotedStory.classroomId).isEqualTo(TEST_CLASSROOM_ID_1)
+    assertThat(promotedStory.classroomTitle.html).isEqualTo("Maths")
     assertThat(promotedStory.completedChapterCount).isEqualTo(1)
     assertThat(promotedStory.isTopicLearned).isFalse()
     assertThat(promotedStory.totalChapterCount).isEqualTo(2)
diff --git a/model/src/main/proto/topic.proto b/model/src/main/proto/topic.proto
index 004980d147a..6ec81bca22d 100755
--- a/model/src/main/proto/topic.proto
+++ b/model/src/main/proto/topic.proto
@@ -277,6 +277,9 @@ message PromotedStory {
   // The written translation context strings corresponding to the next chapter of this story.
   WrittenTranslationContext next_chapter_written_translation_context = 14;
 
+  // The written translation context for the story's classroom strings.
+  WrittenTranslationContext classroom_written_translation_context = 20;
+
   // The title of the story being promoted.
   SubtitledHtml story_title = 15;
 
@@ -289,6 +292,12 @@ message PromotedStory {
   // The title of the next chapter (exploration title) to complete.
   SubtitledHtml next_chapter_title = 17;
 
+  // The ID of the classroom this story is part of.
+  string classroom_id = 18;
+
+  // The title of the classroom this story is part of.
+  SubtitledHtml classroom_title = 19;
+
   // The exploration id next chapter to complete.
   string exploration_id = 6;
 
@@ -331,6 +340,9 @@ message TopicSummary {
   // The title of the topic.
   SubtitledHtml title = 8;
 
+  // The ID of the classroom this topic is part of.
+  string classroom_id = 10;
+
   // The structural version of the topic.
   int32 version = 3;
 
@@ -358,6 +370,12 @@ message EphemeralTopicSummary {
   // The translation context that should be used for this topic summary.
   WrittenTranslationContext written_translation_context = 2;
 
+  // The written translation context for the topic's classroom strings.
+  WrittenTranslationContext classroom_written_translation_context = 3;
+
+  // The title of the classroom this topic is part of.
+  SubtitledHtml classroom_title = 4;
+
   // The ID of the first story of this topic.
   string first_story_id = 7;
 }
@@ -441,9 +459,18 @@ message UpcomingTopic {
   // The written translation context for this topic view.
   WrittenTranslationContext written_translation_context = 6;
 
+  // The written translation context for the topic's classroom strings.
+  WrittenTranslationContext classroom_written_translation_context = 10;
+
   // The title of the topic.
   SubtitledHtml title = 7;
 
+  // The ID of the classroom this topic is part of.
+  string classroom_id = 8;
+
+  // The title of the classroom this topic is part of.
+  SubtitledHtml classroom_title = 9;
+
   // The structural version of the topic.
   int32 version = 3;
 
@@ -547,10 +574,10 @@ message EphemeralRevisionCard {
   WrittenTranslationContext written_translation_context = 2;
 }
 
-// Corresponds to a local file cataloging all available classrooms in the app.
-message ClassroomList {
-  // The list of classrooms available to the app.
-  repeated ClassroomRecord classrooms = 1;
+// Corresponds to a local file cataloging all classrooms available to load.
+message ClassroomIdList {
+  // The list of IDs corresponding to classrooms available on the local filesystem.
+  repeated string classroom_ids = 1;
 }
 
 // Corresponds to a loadable classroom.
@@ -581,6 +608,40 @@ message ClassroomRecord {
   }
 }
 
+// A summary of a classroom which contains a list of topic summaries.
+message ClassroomSummary {
+  // The ID of the classroom.
+  string classroom_id = 1;
+
+  // Mapping from content_id to a TranslationMapping for each SubtitledHtml in this classroom that
+  // has a corresponding translation.
+  map<string, TranslationMapping> written_translations = 2;
+
+  // The title of the classroom.
+  SubtitledHtml classroom_title = 3;
+
+  // The thumbnail corresponding to this classroom.
+  LessonThumbnail classroom_thumbnail = 4;
+
+  // A list of topic summaries contained within this classroom.
+  repeated TopicSummary topic_summary = 5;
+}
+
+// Corresponds to a classroom summary that is currently being viewed.
+message EphemeralClassroomSummary {
+  // The classroom summary to view.
+  ClassroomSummary classroom_summary = 1;
+
+  // The translation context that should be used for this classroom summary.
+  WrittenTranslationContext written_translation_context = 2;
+}
+
+// Corresponds to the list of classrooms that can be shown on the classroom list screen.
+message ClassroomList {
+  // All classrooms that are available to the player.
+  repeated EphemeralClassroomSummary classroom_summary = 1;
+}
+
 // Corresponds to a local file cataloging all concept cards available to load.
 message ConceptCardList {
   // The list of concept cards stored on the local filesystem.