What county am I in right now?
Find out what county you are in right now, or what county you live in, from your location, a ZIP code, a city or coordinates. The county lookup runs on your device against official Census county lines, so your location is never sent or stored.
Find your county from your device's location. Works on phones and computers.
Your location stays on your device. County lines are downloaded and checked in your browser.
Type any 5-digit ZIP code, including PO box ZIPs, to see its county or every county it touches.
Type a city or town and its state. Works for 15,677 places with 1,000 or more people.
Enter latitude and longitude in decimal degrees, as shown by your phone or a map app.
Tip: paste "29.7604, -95.3698" into the first box and it fills both.
- Private: runs on your device
- Free
- Official Census data
- All 50 states + DC
- No signup
Why it matters
Why your county matters
The county you live in decides more than you might think.
Voting
Your county runs elections, voter registration and polling places.
Property tax
County appraisal and tax offices value and bill property by address.
Courts and jury duty
Cases are filed, and jurors called, county by county.
Emergency services
Sheriffs, dispatch and disaster response are often organized by county.
Records and permits
In most states, deeds and marriage licenses are filed with the county.
Forms and benefits
Many state forms and programs ask for your county of residence.
By state
Explore counties in every state
Each state page lists every county with its seat, FIPS code and population, with the lookup built in.
California
Largest: Los Angeles County.
Find my county in CaliforniaTexas
Largest: Harris County.
Find my county in TexasFlorida
Largest: Miami-Dade County.
Find my county in FloridaNew York
Largest: Kings County.
Find my county in New YorkPennsylvania
Largest: Philadelphia County.
Find my county in PennsylvaniaIllinois
Largest: Cook County.
Find my county in IllinoisOhio
Largest: Franklin County.
Find my county in OhioGeorgia
Largest: Fulton County.
Find my county in GeorgiaHow it works
Which county am I in? How the lookup decides
No server sees where you are: the whole check happens in your browser.
Your position
GPS from your device, a ZIP code, a city or coordinates you paste.
County lines load
Your browser downloads the official county lines for your state.
Checked on your device
A point-in-polygon test finds the county that contains you.
County, seat and FIPS
Plus a warning if you are within 500 m of a county line.
Trust and accuracy
Built on official data
Read our methodology for accuracy limits and update schedule.
TIGER/Line 2024
County boundaries from the U.S. Census Bureau, the same lines used by federal statistics.
Census.govAmerican Community Survey
ACS 2019-2023 5-year estimates: population, and how many residents of each city live in each county.
Census.govZCTA relationship file
Census 2020 file matching ZIP code areas to counties, with the share of land in each.
Census.govExplore more
Related tools and guides
Popular lookups
Most populated states
FAQ
County lookup: common questions
What county am I in right now?
How accurate is the location lookup?
Which county am I in if I'm near a county line?
Can a ZIP code be in more than one county?
What county do I live in?
Is my location stored or sent anywhere?
Does it work outside the United States?
Why is my county different from my city?
Is this tool free?
Free · No signup · Private
Find your county now
Use your location, a city or a ZIP code. The check runs on your device; your location is never sent or stored.