Location Tools
Find your county, city, state, congressional district, or township from your GPS location or a street address. Every tool checks against official U.S. Census boundaries rather than crowd-sourced maps, and returns the place’s data along with its name.
Which tool answers which question?
All 6 tools: what you get and when to use each
- What county am I in?Your exact county from GPS, address, city, or ZIP, with its population, median income, unemployment, and county seat.When: Taxes, voter registration, court jurisdiction, or any form that asks for your county.
- What city am I in?The city, town, or community your location falls in: incorporated place or unincorporated area.When: You need the municipality, not the county.
- ZIP-to-county lookupEvery county a ZIP code touches, with each county’s share of that ZIP’s addresses, from HUD data.When: A ZIP spans county lines and you need all of them.
- What state am I in?The state or territory for any location or address, with a link to its full county atlas.When: Near a state line, or confirming which state has jurisdiction.
- My congressional districtYour U.S. House district for the current (119th) Congress, from your location or address.When: Contacting your representative or checking your district.
- What township am I in?Your civil township or minor civil division: the layer of local government below the county.When: In the states that have civil townships (mostly the Northeast and Midwest).
How every tool works
Each one sends your location or address to the U.S. Census Bureau’s geocoder, which point-in-polygon-tests it against the official TIGER/Line boundaries and returns the geography you asked for. CountyAtlas then adds population, income, unemployment, and the county seat from the same primary sources behind the county maps.
Built on named primary sources: read the methodology, or download the full county dataset.
Sources
- Source: U.S. Census Bureau, Census Geocoder, current benchmark and vintage — retrieved Nov 2026
- Source: U.S. Census Bureau, TIGERweb county boundaries, January 1, 2026 vintage — retrieved Nov 2026
- Source: U.S. Department of Housing and Urban Development, HUD-USPS ZIP–County Crosswalk, 2026 Q2 — retrieved Nov 2026
- Source: U.S. Census Bureau, Population Estimates, Vintage 2025 (July 1, 2025) — retrieved Nov 2026
- Source: U.S. Census Bureau, Small Area Income and Poverty Estimates (SAIPE), 2024 — retrieved Nov 2026
- Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics (LAUS), September 2026, preliminary — retrieved Nov 2026
- Source: Wikidata, county seats (P36), query of 2026-11-11 — retrieved Nov 2026