Zip code (zcta) To County Crosswalk

census.gov-zcta_county-2.1.2 Last Update: 2022-04-25T18:11:30

Maps Cenus zip-code tabulation areas to Counties

This file links Ztca regions -- the Census version of ZIP codes, to counties, by associating a Zcta with the county that contains the Zctas centroid.

There are only about 1/2 the number of Zctas in this file ( 33K ) as there are ZIP codes ( about 77K )

Caveats

Note that the ZCTA regions are joined to counties after converting the geometries to EPSG 4326 (WGS84), from the original 4269 (NAD 83). The discrepancy between these CRS is only a few meters, so this should not make a difference.

Contacts

Resources

References