ZIP code 62877 is in Richview (53% of residents), in Washington County (93%) and Jefferson County (7.2%), Illinois. 47% of its residents live outside city limits. It is in Illinois's 12th congressional district. Its state senate districts are State Senate District 55 (93%) and State Senate District 58 (7.2%); its state house districts are State House District 109 (93%) and State House District 116 (7.2%).
4 voting precincts overlap ZIP 62877.
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:62877")
ZIP 62877 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.