Choose the county guide that matches how you search
These pages are built for the questions people ask before they download the app: what county am I in, where does the county line run, how do I look up a county by address, and which FIPS code belongs to which county.
Popular county tasks
Open the guide that matches your next job, road trip stop, field check, or map question.
What County Am I In? Find Your County Right Now
Use your current location to see your county immediately, with the county name and boundary context in one view.
County boundaries mapCounty Lines Map for Every U.S. County
See county lines and boundary changes on the map instead of trying to infer them from place names or road signs.
County name searchCounty Name Lookup for U.S. Counties
Search county names across the U.S. and confirm the right county before you share it, travel to it, or attach it to a record.
Nationwide county finderCounty Finder USA for Travel, Routes, and Fieldwork
Find counties across the U.S. whether you are checking your current stop, planning a route, or confirming a county in a new state.
Address and ZIP lookupCounty Finder by Address, ZIP Code, or Postcode
Look up the county for an address, ZIP code, or postcode and confirm the result on the map before you use it.
County FIPS lookupCounty FIPS Code Lookup and County Name Match
Find county FIPS codes quickly and match a FIPS code back to the county name when you need to verify records.
GPS county lookupFind a County by GPS Coordinates
Find which county a GPS coordinate, map point, or current location falls inside.
County equivalentsCounty Equivalents: Parishes, Boroughs, and Independent Cities
Understand why some U.S. places use parishes, boroughs, census areas, or independent cities instead of standard county names.
County finder appBest County Finder App for County Names and Lines
Choose a county finder app that answers the county question quickly and still shows the boundary context behind the answer.