This animated choropleth map displays the 2020 census population for each U.S. state, using a color scale to encode population values with interactive tooltips. The visualization loads population data from a CSV file and U.S. state boundaries from TopoJSON, then uses `d3.geoAlbersUsa()` for the projection and `d3.geoPath()` to render the SVG paths. State polygons are colored by population via a color scale, with a tooltip showing details on hover.