Boundary Atlas

ZIP code 51523: Blencoe, IA

ZIP code 51523 is in Blencoe (65% of residents), in Monona County (96%) and Harrison County (4.5%), Iowa. 35% of its residents live outside city limits. It is in Iowa's 4th congressional district. Its state senate districts are State Senate District 7 (96%) and State Senate District 8 (4.5%); its state house districts are State House District 13 (96%) and State House District 15 (4.5%).

358residents (2020 Census)
50.2 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
Blencoe65%

CountyShare of ZIP residents
Monona County96%
Harrison County4.5%

Town or county subdivisionShare of ZIP residents
Sherman township91%
Little Sioux township4.5%
Franklin township2.8%
Sioux township1.4%
Belvidere townshipland only

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 7)Kevin Alons (R)96%
State Senator (State Senate District 8)Mark Costello (R)4.5%
State Representative (State House District 13)Travis Sitzmann (R)96%
State Representative (State House District 15)Matt Windschitl (R)4.5%

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 796%
State Senate District 84.5%

State house districtShare of ZIP residents
State House District 1396%
State House District 154.5%

Voting precincts

3 voting precincts overlap ZIP 51523. Map them, with each precinct's share of the ZIP's residents.

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ZIP 51523 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.