Find the Congressional District for Any U.S. Address (Current, Official)

District boundaries change with redistricting. The Census Geocoder returns the district currently in effect — plus state senate and house districts in the same call.

One address or thousands

Open GeoFlow
Paste your addresses (one per line) or upload a CSV and pick the address column
Click Run — each address is matched against the free U.S. Census Bureau Geocoder
Download the enriched CSV

Example output

Input address	County	Congressional	State Senate (SLDU)	House/Assembly (SLDL)
1301 I ST, SACRAMENTO, CA, 95814	Sacramento County (06067)	0607 — Congressional District 7	06008 — State Senate District 8	06006 — Assembly District 6
350 5TH AVE, NEW YORK, NY, 10118	New York County (36061)	3612 — Congressional District 12	36028 — State Senate District 28	36075 — Assembly District 75
1600 PENNSYLVANIA AVE NW, WASHINGTON, DC, 20500	District of Columbia (11001)	1198 — Delegate District (at Large)	11002 — Ward 2	—

Try it free

Open GeoFlow — free up to 100 addresses per run

Data source: U.S. Census Bureau Geocoder (public domain). Timezone: tz-lookup (MIT).

FAQ

What about at-large states?

Alaska, Delaware, North Dakota, South Dakota, Vermont and Wyoming return district code 00 (at-large). DC returns 1198 (Delegate District).

Is it the current map?

Yes — the Current vintage returns districts in effect now, not old congresses.