2020 Census ZCTA → County Crosswalk
See where Census ZCTAs cross county lines, with land-area shares and a largest-land-county flag ready to join.
2020 Census geography
$29 USD · one-time purchase
ACTUALLY CLEAN DATA / DATASETS
Geography & demographics datasets
Connect Census areas to counties and add demographic measures. Compare the geography vintage before combining files; land overlap is not a population weight.
2 datasets
2020–2024 ACS County Demographic Profile
Add population, income, education and housing context to county-coded records, with published margins of error and clear source definitions.
2020–2024 ACS five-year estimates · 2024 county geography
$19 USD · one-time purchase
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