Boundary Atlas

ZIP code 50518: Barnum, IA

ZIP code 50518 is in Barnum (51% of residents), in Webster County, Iowa. 49% of its residents live outside city limits. It is in Iowa's 4th congressional district. Its state senate district is State Senate District 4; its state house districts are State House District 7 (98%) and State House District 8 (2.1%).

342residents (2020 Census)
28.9 sq miland area
1cities and towns
1congressional district
3voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Barnum51%

CountyShare of ZIP residents
Webster County100%

Town or county subdivisionShare of ZIP residents
Johnson township95%
Jackson township2.6%
Douglas township2.1%
Fulton township0.3%

Congressional district

Congressional districtShare of ZIP residents
Iowa's 4th congressional district (IA-04)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IA-04)Randy Feenstra (R)202-225-4426100%
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 4)Tim Kraayenbrink (R)100%
State Representative (State House District 7)Wendy Larson (R)98%
State Representative (State House District 8)Ann Meyer (R)2.1%

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 4100%

State house districtShare of ZIP residents
State House District 798%
State House District 82.1%

Voting precincts

3 voting precincts overlap ZIP 50518. Map them, with each precinct's share of the ZIP's residents.

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ZIP 50518 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.