Boundary Atlas

ZIP code 52101: Decorah, IA

ZIP code 52101 is in Decorah (58% of residents) and Burr Oak (1.3%), in Winneshiek County (100%) and Allamakee County (0.5%), Iowa. 41% of its residents live outside city limits. It is in Iowa's 2nd congressional district. Its state senate district is State Senate District 32; its state house districts are State House District 63 (100%) and State House District 64 (0.5%).

13,186residents (2020 Census)
316.7 sq miland area
2cities and towns
1congressional district
11voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Decorah58%
Burr Oak1.3%

CountyShare of ZIP residents
Winneshiek County100%
Allamakee County0.5%

Town or county subdivisionShare of ZIP residents
Decorah township72%
Canoe township3.9%
Glenwood township3.9%
Pleasant township3.6%
Burr Oak township3.3%
Hesper township2.9%
Springfield township2.4%
Bluffton township2.2%
Madison township2.0%
Highland township1.8%
Frankville township1.6%
Hanover township0.3%
Waterloo township0.2%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
MayorLorraine Borowski58%
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 32)Mike Klimesh (R)100%
State Representative (State House District 63)Michael Bergan (R)100%
State Representative (State House District 64)Jason Gearhart (R)0.5%

From Wikidata (community-maintained); confirm on the city's website.

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); Mayors: Wikidata (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 32100%

State house districtShare of ZIP residents
State House District 63100%
State House District 640.5%

Voting precincts

11 voting precincts overlap ZIP 52101. Map them, with each precinct's share of the ZIP's residents.

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ZIP 52101 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.