Boundary Atlas

ZIP code 47031: Milan, IN

ZIP code 47031 is in Milan (34% of residents) and Pierceville (1.3%), in Ripley County (92%) and Dearborn County (8.0%), Indiana. 64% of its residents live outside city limits. It is in Indiana's 9th congressional district. Its state senate districts are State Senate District 42 (92%) and State Senate District 43 (8.0%); its state house districts are State House District 67 (92%) and State House District 68 (8.0%).

5,200residents (2020 Census)
63.4 sq miland area
3cities and towns
1congressional district
9voting precincts

See it on the mapAll of Indiana

City and county

City or townShare of ZIP residents
Milan34%
Pierceville1.3%
Elrod0.6%

CountyShare of ZIP residents
Ripley County92%
Dearborn County8.0%

Town or county subdivisionShare of ZIP residents
Franklin township56%
Washington township28%
Manchester township8.0%
Johnson township5.5%
Delaware township2.1%
Center township0.4%

Congressional district

Congressional districtShare of ZIP residents
Indiana's 9th congressional district (IN-09)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IN-09)Erin Houchin (R)202-225-5315100%
U.S. SenatorJim Banks (R)202-224-4814statewide
U.S. SenatorTodd Young (R)202-224-5623 · contact formstatewide
State Senator (State Senate District 42)Jean Leising (R)92%
State Senator (State Senate District 43)Randy Maxwell (R)8.0%
State Representative (State House District 67)Alex Zimmerman (R)92%
State Representative (State House District 68)Garrett Bascom (R)8.0%

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 4292%
State Senate District 438.0%

State house districtShare of ZIP residents
State House District 6792%
State House District 688.0%

Voting precincts

9 voting precincts overlap ZIP 47031. Map them, with each precinct's share of the ZIP's residents.

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Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:47031")

ZIP 47031 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.