What County Is This Address In?
Type a full street address, including the city and state or the ZIP Code. We send it to the U.S. Census Bureau Geocoder, which matches it to the official county boundaries and shows you the address it matched.
Want to check where you are standing right now with GPS? Switch to What County Am I In? to use your device location.
Why an address gives the most exact answer
A street address points to one spot, so it lands in exactly one county. That makes it more reliable than a ZIP Code, which can cross county lines, or than browser location, which can be off by a mile or more on a laptop. If you're filling out a form that asks for your county of residence, your home address is the safest way to check.
Tips if your address isn't found
- Include the city and state, or the 5-digit ZIP Code: 350 Fifth Ave, New York, NY 10118.
- Use the street number and street name only; leave out apartment or suite numbers.
- Spell out the street name the way it appears on mail, and check for typos.
- You can paste an address copied from an email or a website; extra spaces and line breaks are ignored.
- Very new streets and some rural routes may not be in the Census address list yet. Try a nearby cross street, or look up the ZIP Code instead.
What we check the address against
The Census Bureau Geocoder uses the Bureau's current address ranges and boundary files (the same data behind the decennial census and federal district maps). Along with the county, you'll see the city or place, township, ZIP Code area, congressional district, state legislative districts, and school district for that address.
Your address stays private
Your address is sent in the body of a secure request, not in the page URL, and we don't store it. It is shared with the U.S. Census Bureau to perform the lookup. See our privacy page for details.