ZIP code 79331 is in Lamesa (73% of residents), in Dawson County (99%), Martin County (0.4%), Gaines County (0.1%) and Borden County (<0.1%), Texas. 27% of its residents live outside city limits. It is in Texas's 19th congressional district. Its state senate district is State Senate District 31; its state house districts are State House District 82 (100%), State House District 88 (0.1%) and State House District 83 (<0.1%).
Elected in 2024 under TX's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
14 voting precincts overlap ZIP 79331.
Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:79331")
ZIP 79331 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.