Fork of Choropleth map in D3

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Fork of Choropleth map in D3

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Last edited Mar 31, 2024

Created on Mar 31, 2024

A choropleth map of the United States visualizes 2021 county-level poverty estimates, with each state shaded according to its poverty rate using a quantized color scale from light to dark blue. The visualization loads CSV data from a GitHub gist and combines it with TopoJSON geographic boundaries from `us-10m.v1.json`, rendering the map as SVG paths via `d3.geoPath` with an Albers USA projection. A legend generated by `d3.legendColor` displays the unemployment rate scale, while hover effects and tooltips appear through d3 event handlers. Data originates from the U.S. Census Bureau's Small Area Income and Poverty Estimates program.

AI-generated description

Poverty estimates for U.S., States, and counties, 2021 Source: U.S. Department of Commerce, Bureau of the Census, Small Area Income and Poverty Estimates (SAIPE) Program. For definitions of rural classifications, see the USDA, Economic Research Service webpage 'Rural Classifications' in the 'Rural Economy & Population' topic. Note that counties not existing when rural classifications were determined will not have values for those fields. Variable descriptions (column names) are found in the second tab in this workbook. This table was prepared by USDA, Economic Research Service. Data as of June 16, 2023. Contact: Austin Sanders, austin.sanders@usda.gov

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