Boundary Atlas

ZIP code 52742: DeWitt, IA

ZIP code 52742 is in DeWitt (72% of residents), in Clinton County, Iowa. 28% of its residents live outside city limits. It is in Iowa's 1st congressional district. Its state senate district is State Senate District 35; its state house districts are State House District 70 (99%) and State House District 69 (0.9%).

7,651residents (2020 Census)
117.0 sq miland area
1cities and towns
1congressional district
7voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
DeWitt72%

CountyShare of ZIP residents
Clinton County100%

Town or county subdivisionShare of ZIP residents
DeWitt township89%
Orange township4.6%
Eden township2.3%
Washington township1.8%
Welton township1.1%
Center township0.9%
Camanche townshipland only

Congressional district

Congressional districtShare of ZIP residents
Iowa's 1st congressional district (IA-01)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IA-01)Mariannette Miller-Meeks (R)202-225-6576100%
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 35)Mike Zimmer (Democratic)100%
State Representative (State House District 70)Norlin Mommsen (R)99%
State Representative (State House District 69)Tom Determann (R)0.9%

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 35100%

State house districtShare of ZIP residents
State House District 7099%
State House District 690.9%

Voting precincts

7 voting precincts overlap ZIP 52742. Map them, with each precinct's share of the ZIP's residents.

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ZIP 52742 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.