ZIP code 59031: Big Horn County, MT
ZIP code 59031 is in Big Horn County, Montana, outside any city or Census-designated place. It is in Montana's 2nd congressional district. Its state senate district is State Senate District 21; its state house districts are State House District 41 (65%) and State House District 42 (35%).
See it on the mapAll of Montana
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Big Horn County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Crow Reservation CCD | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Montana's 2nd congressional district (MT-02) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MT-02) | Troy Downing (R) | 202-225-3211 | 100% |
| U.S. Senator | Steve Daines (R) | 202-224-2651 · contact form | statewide |
| U.S. Senator | Tim Sheehy (R) | 202-224-2644 | statewide |
| State Senator (State Senate District 21) | Gayle Lammers (R) | 406-679-0020 | 100% |
| State Representative (State House District 41) | Jade Sooktis (Democratic) | 65% | |
| State Representative (State House District 42) | Chip Fitzpatrick (Democratic) | 35% |
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).
Local government
- Big Horn County laws: search for the Big Horn County, Montana code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 21 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 41 | 65% |
| State House District 42 | 35% |
Voting precincts
4 voting precincts overlap ZIP 59031. 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://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:59031")
ZIP 59031 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.