Boundary Atlas

ZIP code 59421: Cascade, MT

ZIP code 59421 is in Cascade (29% of residents), Cascade Colony (5.6%) and Hardy (4.3%), in Cascade County (92%) and Lewis and Clark County (8.3%), Montana. 61% of its residents live outside city limits. It is in Montana's 2nd congressional district. Its state senate districts are State Senate District 13 (92%) and State Senate District 9 (8.3%); its state house districts are State House District 25 (92%) and State House District 17 (8.3%).

2,057residents (2020 Census)
746.6 sq miland area
3cities and towns
1congressional district
3voting precincts

See it on the mapAll of Montana

City and county

City or townShare of ZIP residents
Cascade29%
Cascade Colony5.6%
Hardy4.3%

CountyShare of ZIP residents
Cascade County92%
Lewis and Clark County8.3%

Town or county subdivisionShare of ZIP residents
Cascade CCD83%
Wolf Creek CCD8.3%
Sun River Valley CCD7.3%
Great Falls CCD1.8%

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 13)Josh Kassmier (R)92%
State Senator (State Senate District 9)Butch Gillespie (R)8.3%
State Representative (State House District 25)Steve Gist (R)406-231-405092%
State Representative (State House District 17)Zack Wirth (R)406-750-58528.3%

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 1392%
State Senate District 98.3%

State house districtShare of ZIP residents
State House District 2592%
State House District 178.3%

Voting precincts

3 voting precincts overlap ZIP 59421. Map them, with each precinct's share of the ZIP's residents.

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ZIP 59421 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.