ZIP code 35120 is in Margaret (27% of residents), Odenville (24%), Argo (15%) and Moody (4.6%), in St. Clair County, Alabama. 29% of its residents live outside city limits. It is in Alabama's 3rd congressional district. Its state senate districts are State Senate District 11 (100%) and State Senate District 17 (0.2%); its state house districts are State House District 50 (100%) and State House District 30 (0.2%).
7 voting precincts overlap ZIP 35120.
Map them, with each precinct's share of the ZIP's residents.
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Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:35120")
ZIP 35120 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code;
PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.