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Free Location Tool
What County Am I In? Find Your County Instantly
Find the county you are in right now with one tap, or look up any US ZIP code, street address or GPS coordinates. Get the county name, FIPS code, time zone and map, plus your city limits, school district and congressional district, all from official U.S. Census Bureau boundaries.
What County Am I In?
Find the county for your current location, a ZIP code, a street address or GPS coordinates.
Instantly detect your county using your device's location. Works on mobile and desktop.
Your browser asks for permission first. Your location is only used for this lookup and is never stored.
Shows every county the ZIP code covers, with each county's share of the ZIP's land area.
US street addresses are matched with official Census address data. Landmarks, cities and places outside the US also work.
Decimal degrees or degrees, minutes and seconds (29°45′37″N 95°22′11″W). Paste a "lat, lon" pair into the first box to fill both.
Official boundaries from the U.S. Census Bureau. Places outside the US use OpenStreetMap. Locations you look up are not stored.
US Counties & Equivalents
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ZIP Code Areas Mapped
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Ways to Look Up
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Free to Use
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How It Works
How to Find What County You Are In
Pick the method that matches the information you have.
Use Your Location
Tap Use My Current Location and allow location access. Your county appears in a few seconds.
Or Enter a ZIP Code
See every county a ZIP code covers, with each county's share of the ZIP area.
Or Search an Address
Type a street address for an exact match against official Census address data.
Or Paste Coordinates
Enter latitude and longitude in decimal or degrees, minutes and seconds, or click the map.
Official Data
County Results You Can Trust Verify
Every US location is checked against the U.S. Census Bureau’s official TIGER/Line boundaries, the same data used by government agencies. Results include the 5-digit county FIPS code and the local districts that apply to that exact point.
1/ Census Bureau Boundaries
Points and US street addresses are matched with the Census Bureau Geocoder, including independent cities, parishes, boroughs and Connecticut's planning regions.
2/ More Than a County Name
See city limits or unincorporated status, school district, congressional and state legislative districts, census tract and metro area.
3/ ZIP Codes Done Right
ZIP codes often cross county lines. We list every county a ZIP covers, using the Census ZIP Code Tabulation Areas.
Use Cases
Why People Look Up Their County
Your county decides which local government offices and services apply to you.
Voting & Elections
Find your county election office and confirm your congressional and state legislative districts.
Property & Taxes
Property records, deeds and property tax assessments are handled by the county.
Courts & Legal Forms
Many forms and filings ask for your county and the correct court jurisdiction.
Business & Mailing Lists
Convert up to 2,000 ZIP codes to counties at once and download the results as CSV.
Local SEO for Businesses
Targeting customers by county? Our team builds local SEO campaigns and location pages that rank.
Click Use My Current Location and allow location access when your browser asks. Your coordinates are checked against official U.S. Census Bureau county boundaries and your county, state and FIPS code appear in seconds.
Yes. ZIP codes are mail delivery routes, not legal boundaries, and many cross county lines. The ZIP tab lists every county a ZIP code covers with its share of the ZIP's land area. For the exact county of a home, search the street address.
For coordinates and US street addresses the county comes from the Census Bureau's official TIGER/Line boundaries. Phone GPS is usually accurate to a few meters outdoors; if you are close to a county line, the tool warns you so you can confirm with your address.
A FIPS code is a 5-digit number that identifies a county: the first two digits are the state and the last three are the county. Harris County, Texas is 48201. It is used on government forms and in data sets.
Yes. Addresses and coordinates outside the US are matched with OpenStreetMap, which returns the local equivalent of a county, such as a district, department or region.
No. Your location is only used to look up the result and is not saved. Your browser remembers your recent lookups on your own device, and you can clear them at any time.
Win More Local Customers
Knowing your county is step one. iRankFlow helps local businesses rank in every city and county they serve.
- Local SEO and Google Business Profile optimization
- Location pages that rank
- Free, no-obligation audit