Boundary Atlas

ZIP code 50170: Monroe, IA

ZIP code 50170 is in Monroe (69% of residents), in Jasper County (90%) and Marion County (9.7%), Iowa. 31% of its residents live outside city limits. It is in Iowa's 1st congressional district. Its state senate district is State Senate District 19; its state house districts are State House District 37 (100%) and State House District 38 (0.3%).

2,854residents (2020 Census)
83.2 sq miland area
1cities and towns
1congressional district
5voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Monroe69%

CountyShare of ZIP residents
Jasper County90%
Marion County9.7%

Town or county subdivisionShare of ZIP residents
Fairview township87%
Red Rock township8.5%
Des Moines township2.5%
Summit township1.2%
Mound Prairie township0.3%
Palo Alto townshipland only

Congressional district

Congressional districtShare of ZIP residents
Iowa's 1st congressional district (IA-01)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IA-01)Mariannette Miller-Meeks (R)202-225-6576100%
U.S. SenatorChuck Grassley (R)202-224-3744 · contact formstatewide
U.S. SenatorJoni Ernst (R)202-224-3254 · contact formstatewide
State Senator (State Senate District 19)Ken Rozenboom (R)100%
State Representative (State House District 37)Barb Kniff McCulla (R)100%

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 house districtShare of ZIP residents
State House District 37100%
State House District 380.3%

Voting precincts

5 voting precincts overlap ZIP 50170. Map them, with each precinct's share of the ZIP's residents.

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ZIP 50170 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.