COVID-19 Map by county per capita

A map of COVID-19 cases by US county.

Sources of data

• New York Times
  • https://github.com/nytimes/covid-19-data
  • https://www.nytimes.com/interactive/2020/us/coronavirus-us-cases.html
• US Census Bureau - https://github.com/uscensusbureau/citysdk

Tools

• OpenStreetMap - https://www.openstreetmap.org
• Leaflet

Demo

Here's New York. Some counties don't match up. NYC is described differently between Census and NYT.

Sites that helped me build this

Basis

• https://uscensusbureau.github.io/citysdk/examples/leaflet-choropleth/ - sample county choropleth

Helpers

• https://medium.com/samsung-internet-dev/common-responsive-layouts-with-css-grid-and-some-without-245a862f48df - responsive css grid
• https://www.freecodecamp.org/news/how-to-make-a-promise-out-of-a-callback-function-in-javascript-d8ec35d1f981/ - for turning a callback into a promise
• https://leafletjs.com/examples/quick-start/ - a starter
• https://leafletjs.com/examples/geojson/ - for style
• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/all
• https://developer.mozilla.org/en-US/docs/Web/API/Streams_API/Using_readable_streams - for streaming fetch() data TODO
• https://www.nytimes.com/article/coronavirus-county-data-us.html?action=click&module=Spotlight&pgtype=Homepage
• https://www.census.gov/data/datasets/time-series/demo/popest/2010s-counties-total.html - for data on county population
• https://observablehq.com/@nickhand/internet-availability-for-us-counties - inspired me
• https://blog.apps.npr.org/2014/09/02/reusable-data-processing.html - server side consideration