Boundary Atlas

ZIP code 50140: Lamoni, IA

ZIP code 50140 is in Lamoni (79% of residents), in Decatur County (97%) and Ringgold County (3.2%), Iowa. 21% of its residents live outside city limits. It is in Iowa's 3rd congressional district. Its state senate districts are State Senate District 12 (97%) and State Senate District 9 (3.2%); its state house districts are State House District 24 (97%) and State House District 17 (3.2%).

2,503residents (2020 Census)
92.7 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
Lamoni79%

CountyShare of ZIP residents
Decatur County97%
Ringgold County3.2%

Town or county subdivisionShare of ZIP residents
Lamoni city79%
Bloomington township8.6%
Fayette township7.9%
Riley township2.8%
Grand River township1.2%
New Buda township0.5%
Athens township0.2%
Lotts Creek township0.2%

Congressional district

Congressional districtShare of ZIP residents
Iowa's 3rd congressional district (IA-03)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IA-03)Zachary Nunn (R)202-225-5476100%
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 12)Amy Sinclair (R)97%
State Senator (State Senate District 9)Tom Shipley (R)3.2%
State Representative (State House District 24)Sam Wengryn (R)97%
State Representative (State House District 17)Devon Wood (R)3.2%

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 1297%
State Senate District 93.2%

State house districtShare of ZIP residents
State House District 2497%
State House District 173.2%

Voting precincts

5 voting precincts overlap ZIP 50140. Map them, with each precinct's share of the ZIP's residents.

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ZIP 50140 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.