Boundary Atlas

ZIP code 59457: Lewistown, MT

ZIP code 59457 is in Lewistown (67% of residents) and Lewistown Heights (4.1%), in Fergus County, Montana. 29% of its residents live outside city limits. It is in Montana's 2nd congressional district. Its state senate districts are State Senate District 19 (100%) and State Senate District 39 (0.3%); its state house districts are State House District 37 (100%) and State House District 78 (0.3%).

8,894residents (2020 Census)
995.6 sq miland area
8cities and towns
1congressional district
13voting precincts

See it on the mapAll of Montana

City and county

City or townShare of ZIP residents
Lewistown67%
Lewistown Heights4.1%
King Ranch Colony0.6%
Deerfield Colony0.5%
Spring Creek Colony0.4%
Brooks0.2%
Warm Spring Creek0.2%
Danvers0.2%

CountyShare of ZIP residents
Fergus County100%

Town or county subdivisionShare of ZIP residents
Lewistown CCD93%
Hanover CCD4.7%
Grass Range CCD1.3%
Denton CCD0.6%
Roy CCD<0.1%

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 19)Barry Usher (R)406-252-2888100%
State Senator (State Senate District 39)Wylie Galt (R)0.3%
State Representative (State House District 37)Shane Klakken (R)100%
State Representative (State House District 78)Randyn Gregg (R)0.3%

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 19100%
State Senate District 390.3%

State house districtShare of ZIP residents
State House District 37100%
State House District 780.3%

Voting precincts

13 voting precincts overlap ZIP 59457. Map them, with each precinct's share of the ZIP's residents.

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ZIP 59457 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.