Boundary Atlas

ZIP code 46733: Decatur, IN

ZIP code 46733 is in Decatur (53% of residents), in Adams County (99%) and Allen County (0.7%), Indiana. 47% of its residents live outside city limits. It is in Indiana's 3rd congressional district. Its state senate districts are State Senate District 19 (99%) and State Senate District 14 (0.7%); its state house districts are State House District 79 (99%) and State House District 85 (0.7%).

18,669residents (2020 Census)
172.4 sq miland area
1cities and towns
1congressional district
19voting precincts

See it on the mapAll of Indiana

City and county

City or townShare of ZIP residents
Decatur53%

CountyShare of ZIP residents
Adams County99%
Allen County0.7%

Town or county subdivisionShare of ZIP residents
Washington township43%
Root township32%
St. Marys township6.8%
Preble township5.2%
Kirkland township5.1%
Union township4.1%
Blue Creek township1.1%
French township0.9%
Marion township0.4%
Monroe township0.3%
Madison township0.2%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IN-03)Marlin A. Stutzman (R)202-225-4436100%
U.S. SenatorJim Banks (R)202-224-4814statewide
U.S. SenatorTodd Young (R)202-224-5623 · contact formstatewide
State Senator (State Senate District 19)Travis Holdman (R)99%
State Senator (State Senate District 14)Tyler Johnson (R)0.7%
State Representative (State House District 79)Matt Lehman (R)99%
State Representative (State House District 85)Dave Heine (R)0.7%

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 1999%
State Senate District 140.7%

State house districtShare of ZIP residents
State House District 7999%
State House District 850.7%

Voting precincts

19 voting precincts overlap ZIP 46733. Map them, with each precinct's share of the ZIP's residents.

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ZIP 46733 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.