Poverty dataset from USDA Economic Research Service

• Note: USDA did not provide data for the Valdez-Cordova Census Area (AK); this datum was pulled from usdata.io
• Poverty rates were multiplied by 5 for color scaling (otherwise the map would be entirely pale); data were not modified and are accessible via tooltip.

US County Map from topojson/us-atlas on GitHub

This vizualization is optimized for a resolution of 1920 x 1080.

References:

• Observable D3 Gallery: Choropleth
• Observable D3 Gallery: U.S. Map
• GitHub: topojson/topojson
• GitHub: topojson/us-atlas
• D3 in Depth: Requesting data with D3
• Prior assignments