County lookup guides for every US state
This state hub helps you find the correct county for any location in the United States. Each state page is designed for searchers who need a fast county answer, a state-specific explanation, a list of major counties, examples of popular cities and their counties, and links to the best lookup method for their situation.
How to use the state guides
Choose a state, then use the county lookup tools by current location, address, ZIP code, or coordinates. State pages are especially useful when a city name exists in more than one state, when a ZIP code crosses county lines, or when a metro area spans multiple counties.
Why state context improves county accuracy
County names repeat across the country, so state context is essential. For example, there are many Washington, Jefferson, Franklin, and Madison counties. Pairing the county name with the state and FIPS code removes ambiguity and makes the result useful for public records, taxes, GIS datasets, voting, court jurisdiction, and government forms.
Best lookup method by state search
- Current location: best when you are physically in the state and need your county now.
- Address lookup: best for homes, businesses, parcels, schools, courts, and official forms.
- ZIP lookup: best for quick estimates, but less precise where ZIP codes cross county lines.
- Coordinates lookup: best for GPS points, maps, field work, rural land, and survey data.