Updated
County lookup explained
Search the complete 2026 national Census Gazetteer for county and county-equivalent areas. Geographic codes keep their leading zeros. Results include the published internal latitude and longitude, with an optional state filter where the source supplies one.
A worked example
01001 identifies Autauga County. Its published representative point is 32.532237, -86.64644.
Before you use the result
U.S. Census coverage includes the 50 states, District of Columbia and Puerto Rico where applicable; not a worldwide geocoder. Coordinates identify internal representative points, not street addresses, mailing eligibility or boundary polygons. ZCTAs are not interchangeable with USPS ZIP Codes. Broad queries display the first 100 matches.
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ToolOctopus. “County lookup.” Updated 2026-09-26. https://tooloctopus.com/county-lookup.
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