Boundary Atlas

ZIP code 59003: Ashland, MT

ZIP code 59003 is in Ashland (70% of residents), in Rosebud County (82%) and Powder River County (18%), Montana. 30% of its residents live outside city limits. It is in Montana's 2nd congressional district. Its state senate districts are State Senate District 21 (82%), State Senate District 17 (18%) and State Senate District 18 (0.4%); its state house districts are State House District 41 (82%), State House District 34 (18%) and State House District 35 (0.4%).

1,106residents (2020 Census)
751.1 sq miland area
1cities and towns
1congressional district
5voting precincts

See it on the mapAll of Montana

City and county

City or townShare of ZIP residents
Ashland70%

CountyShare of ZIP residents
Rosebud County82%
Powder River County18%

Town or county subdivisionShare of ZIP residents
Northern Cheyenne Reservation CCD55%
Ashland CCD26%
Otter CCD18%
Rosebud CCD0.8%

Congressional district

Congressional districtShare of ZIP residents
Montana's 2nd congressional district (MT-02)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MT-02)Troy Downing (R)202-225-3211100%
U.S. SenatorSteve Daines (R)202-224-2651 · contact formstatewide
U.S. SenatorTim Sheehy (R)202-224-2644statewide
State Senator (State Senate District 21)Gayle Lammers (R)406-679-002082%
State Senator (State Senate District 17)Bob Phalen (R)406-939-118718%
State Senator (State Senate District 18)Ken Bogner (R)406-916-96900.4%
State Representative (State House District 41)Jade Sooktis (Democratic)82%
State Representative (State House District 34)Jerry Schillinger (R)18%
State Representative (State House District 35)Gary Parry (R)0.4%

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2182%
State Senate District 1718%
State Senate District 180.4%

State house districtShare of ZIP residents
State House District 4182%
State House District 3418%
State House District 350.4%

Voting precincts

5 voting precincts overlap ZIP 59003. 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:59003")

ZIP 59003 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.