Find the State Senate and Assembly District for Any U.S. Address

Batch-append SLDU (upper chamber) and SLDL (lower chamber) GEOIDs to address lists — the layers most CRMs are missing.

How it works

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

Example output

Input addressCountyCongressionalState Senate (SLDU)Assembly (SLDL)Timezone
1600 Pennsylvania Ave NW, Washington, DC 20500District of Columbia (11001)1198 — Delegate District (at Large)Ward 2 (11002)— (DC has no lower chamber)America/New_York
350 5th Ave, New York, NY 10118New York County (36061)3612 — NY 12th DistrictState Senate 28 (36028)Assembly 75 (36075)America/New_York
1 Market St, San Francisco, CA 94105San Francisco County (06075)0611 — CA 11th DistrictState Senate 11 (06011)Assembly 17 (06017)America/Los_Angeles

Try it free

Open GeoFlow — free during beta

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

FAQ

What are SLDU and SLDL?

SLDU is the state senate (upper chamber) district; SLDL is the state house/assembly (lower chamber) district. Nebraska's unicameral returns SLDU only; DC uses wards as SLDU and has no SLDL.