Boundary Atlas

ZIP code 59634: Montana City, MT

ZIP code 59634 is in Montana City (52% of residents), Clancy (32%) and South Hills (12%), in Jefferson County, Montana. It is in Montana's 2nd congressional district. Its state senate districts are State Senate District 38 (89%) and State Senate District 40 (11%); its state house districts are State House District 75 (89%) and State House District 79 (11%).

5,393residents (2020 Census)
251.3 sq miland area
3cities and towns
1congressional district
8voting precincts

See it on the mapAll of Montana

City and county

City or townShare of ZIP residents
Montana City52%
Clancy32%
South Hills12%

CountyShare of ZIP residents
Jefferson County100%

Town or county subdivisionShare of ZIP residents
Boulder CCD100%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 3889%
State Senate District 4011%

State house districtShare of ZIP residents
State House District 7589%
State House District 7911%

Voting precincts

8 voting precincts overlap ZIP 59634. 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:59634")

ZIP 59634 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.