ZIP code 59275: Westby, MT
ZIP code 59275 is in Westby (50% of residents), in Sheridan County (90%) and Divide County (10%), Montana. 50% of its residents live outside city limits. It is in Montana's 2nd congressional district (90%) and North Dakota's at-large congressional district (10%). Its state senate districts are State Senate District 15 (90%) and State Senate District 2 (10%); its state house districts are State House District 29 (90%) and State House District 2 (10%).
See it on the mapAll of Montana
City and county
| City or town | Share of ZIP residents |
|---|---|
| Westby | 50% |
| County | Share of ZIP residents |
|---|---|
| Sheridan County | 90% |
| Divide County | 10% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Westby CCD | 83% |
| Plentywood CCD | 6.5% |
| Daneville township | 6.5% |
| Westby township | 3.3% |
| Elkhorn township | 0.6% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Montana's 2nd congressional district (MT-02) | 90% |
| North Dakota's at-large congressional district (ND-AL) | 10% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MT-02) | Troy Downing (R) | 202-225-3211 | 90% |
| U.S. Representative (ND-AL) | Julie Fedorchak (R) | 202-225-2611 | 10% |
| 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 15) | Gregg Hunter (R) | 90% | |
| State Senator (State Senate District 2) | Mark Enget (R) | 10% | |
| State Representative (State House District 29) | Valerie Moore (R) | 406-385-7983 | 90% |
| State Representative (State House District 2) | Bert Anderson (R) | 10% | |
| State Representative (State House District 2) | Donald Longmuir (R) | 10% |
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
- Westby laws: search for the Westby, Montana code of ordinances
- Sheridan County laws: search for the Sheridan County, Montana code of ordinances
- Divide County website: http://www.dividecountynd.org
- Divide County laws: search for the Divide County, Montana code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 15 | 90% |
| State Senate District 2 | 10% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 29 | 90% |
| State House District 2 | 10% |
Voting precincts
3 voting precincts overlap ZIP 59275. It also crosses into ND. 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:59275")
ZIP 59275 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.