Boundary Atlas

ZIP code 51239: Hull, IA

ZIP code 51239 is in Hull (71% of residents), in Sioux County (98%) and Lyon County (1.7%), Iowa. 29% of its residents live outside city limits. It is in Iowa's 4th congressional district. Its state senate district is State Senate District 2; its state house district is State House District 4.

3,343residents (2020 Census)
67.0 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
Hull71%

CountyShare of ZIP residents
Sioux County98%
Lyon County1.7%

Town or county subdivisionShare of ZIP residents
Lincoln township88%
Welcome township4.6%
Sheridan township2.9%
Rock township1.7%
Garfield township1.0%
Capel township0.8%
Wheeler township0.7%
Plato township0.5%

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 2)Jeff Taylor (R)100%
State Representative (State House District 4)Skyler Wheeler (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 2100%

State house districtShare of ZIP residents
State House District 4100%

Voting precincts

5 voting precincts overlap ZIP 51239. Map them, with each precinct's share of the ZIP's residents.

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ZIP 51239 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.