ZIP code 59058: Garfield County, MT
ZIP code 59058 is in Garfield County (57%) and Petroleum County (43%), Montana, outside any city or Census-designated place. It is in Montana's 2nd congressional district. Its state senate districts are State Senate District 18 (57%) and State Senate District 19 (43%); its state house districts are State House District 35 (57%) and State House District 37 (43%).
See it on the mapAll of Montana
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Garfield County | 57% |
| Petroleum County | 43% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| North Garfield CCD | 56% |
| Winnett South CCD | 43% |
| South Garfield CCD | 1.6% |
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 18) | Ken Bogner (R) | 406-916-9690 | 57% |
| State Senator (State Senate District 19) | Barry Usher (R) | 406-252-2888 | 43% |
| State Representative (State House District 35) | Gary Parry (R) | 57% | |
| State Representative (State House District 37) | Shane Klakken (R) | 43% |
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
- Garfield County website: http://www.garfieldcounty.com
- Garfield County laws: search for the Garfield County, Montana code of ordinances
- Petroleum County website: http://www.petroleumcountymt.com
- Petroleum County laws: search for the Petroleum County, Montana code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 18 | 57% |
| State Senate District 19 | 43% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 35 | 57% |
| State House District 37 | 43% |
Voting precincts
2 voting precincts overlap ZIP 59058. 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:59058")
ZIP 59058 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.