Boundary Atlas

ZIP code 50674: Sumner, IA

ZIP code 50674 is in Sumner (58% of residents), in Bremer County (85%), Fayette County (13%) and Chickasaw County (2.1%), Iowa. 42% of its residents live outside city limits. It is in Iowa's 2nd congressional district. Its state senate districts are State Senate District 29 (87%) and State Senate District 34 (13%); its state house districts are State House District 58 (87%) and State House District 68 (13%).

3,480residents (2020 Census)
158.9 sq miland area
2cities and towns
1congressional district
8voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Sumner58%
Frederika0.8%

CountyShare of ZIP residents
Bremer County85%
Fayette County13%
Chickasaw County2.1%

Town or county subdivisionShare of ZIP residents
Sumner city58%
Dayton township9.5%
Sumner No. 2 township8.9%
Banks township8.7%
Le Roy township4.8%
Franklin township2.3%
Fredericksburg township2.1%
Fremont township2.0%
Frederika township1.5%
Bethel township1.2%
Center township0.5%
Sumner city0.3%
Fremont township0.1%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IA-02)Ashley Hinson (R)202-225-2911100%
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 29)Sandy Salmon (R)87%
State Senator (State Senate District 34)Dan Zumbach (R)13%
State Representative (State House District 58)Charley Thomson (R)87%
State Representative (State House District 68)Chad Ingels (R)13%

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 2987%
State Senate District 3413%

State house districtShare of ZIP residents
State House District 5887%
State House District 6813%

Voting precincts

8 voting precincts overlap ZIP 50674. Map them, with each precinct's share of the ZIP's residents.

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ZIP 50674 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.