Data catalogue
4 official sources and 34 indicators, reconciled to the same 3,144-county geography so every layer lines up exactly. Every number is traceable back to its source and year.
Counts read live from the database.
American Community Survey (ACS)
2020–24The Census Bureau's continuous household survey, pooled over five years so every county has an estimate — income, poverty, work, education, housing, health coverage, commuting, language, race and ethnicity.
32 INDICATORS
US Census Bureau · Population Estimates
2025County population from the Population Estimates Program (Vintage 2025), with density over each county's land area from the 2025 cartographic boundaries.
2 INDICATORS
Population Timeline
2020–2025County population for every year from 2020 to 2025, all from the same Vintage 2025 estimates series, so the years are revised together and comparable with each other.
6 YEARS
County Boundaries
2025The Census Bureau's 2025 cartographic boundary files (1:5,000,000): every county and county-equivalent in the 50 states and DC. Every US layer is joined to these counties by FIPS code.
3,144 COUNTIES · 50 STATES & DC