Boundary Atlas

ZIP code 59602: Helena Valley West Central, MT

ZIP code 59602 is in Helena Valley West Central (30% of residents), Helena Valley Southeast (16%), Helena Valley Northwest (16%), Helena Valley Northeast (13%), Helena (11%) and Helena West Side (1.7%), in Lewis and Clark County, Montana. 12% of its residents live outside city limits. It is in Montana's 2nd congressional district. Its state senate districts are State Senate District 41 (34%), State Senate District 40 (29%), State Senate District 42 (27%) and State Senate District 9 (10%); its state house districts are State House District 84 (27%), State House District 81 (19%), State House District 82 (15%), State House District 80 (14%), State House District 79 (14%) and State House District 17 (10%).

29,390residents (2020 Census)
524.3 sq miland area
7cities and towns
1congressional district
17voting precincts

See it on the mapAll of Montana

City and county

City or townShare of ZIP residents
Helena Valley West Central30%
Helena Valley Southeast16%
Helena Valley Northwest16%
Helena Valley Northeast13%
Helena11%
Helena West Side1.7%
York0.3%

CountyShare of ZIP residents
Lewis and Clark County100%

Town or county subdivisionShare of ZIP residents
Helena CCD73%
Lincoln CCD19%
Wolf Creek CCD8.1%

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 41)Janet Ellis (Democratic)34%
State Senator (State Senate District 40)Laura Smith (Democratic)29%
State Senator (State Senate District 42)Mary Ann Dunwell (Democratic)406-461-535827%
State Senator (State Senate District 9)Butch Gillespie (R)10%
State Representative (State House District 84)Julie Darling (R)27%
State Representative (State House District 81)Mary Caferro (Democratic)19%
State Representative (State House District 82)Pete Elverum (Democratic)15%
State Representative (State House District 80)Melissa Romano (Democratic)14%
State Representative (State House District 79)Luke Muszkiewicz (Democratic)14%
State Representative (State House District 17)Zack Wirth (R)406-750-585210%

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 4134%
State Senate District 4029%
State Senate District 4227%
State Senate District 910%

State house districtShare of ZIP residents
State House District 8427%
State House District 8119%
State House District 8215%
State House District 8014%
State House District 7914%
State House District 1710%

Voting precincts

17 voting precincts overlap ZIP 59602. 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:59602")

ZIP 59602 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.