Boulder, Montana
Boulder is a city in Jefferson County, Montana, with 1,201 residents in 2020. It is in Montana's 2nd congressional district. Its state senate district is State Senate District 38; its state house district is State House District 75.
County
| County | Share of residents |
|---|---|
| Jefferson County | 100% |
Congressional district
| Congressional district | Share of 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 38) | Becky Beard (R) | 100% | |
| State Representative (State House District 75) | Mark Reinschmidt (R) | 100% |
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
- Boulder laws: search for the Boulder, Montana code of ordinances
- Jefferson County laws: search for the Jefferson County, Montana code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 38 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 75 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Boulder: the share of that ZIP's residents living in it.
- 59632 (60%)
Get this in your AI agent
Your agent can get Boulder's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:3008575")
Boulder here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.