Boundary Atlas

ZIP code 46168: Plainfield, IN

ZIP code 46168 is in Plainfield (83% of residents) and Avon (5.8%), in Hendricks County, Indiana. 11% of its residents live outside city limits. It is in Indiana's 4th congressional district. Its state senate districts are State Senate District 35 (85%) and State Senate District 24 (15%); its state house districts are State House District 40 (45%), State House District 57 (44%) and State House District 28 (12%).

37,681residents (2020 Census)
32.8 sq miland area
3cities and towns
1congressional district
28voting precincts

See it on the mapAll of Indiana

City and county

City or townShare of ZIP residents
Plainfield83%
Avon5.8%
Cartersburg0.2%

CountyShare of ZIP residents
Hendricks County100%

Town or county subdivisionShare of ZIP residents
Guilford township82%
Washington township15%
Liberty township3.3%

Congressional district

Congressional districtShare of ZIP residents
Indiana's 4th congressional district (IN-04)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IN-04)James R. Baird (R)202-225-5037100%
U.S. SenatorJim Banks (R)202-224-4814statewide
U.S. SenatorTodd Young (R)202-224-5623 · contact formstatewide
State Senator (State Senate District 35)Mike Young (R)85%
State Senator (State Senate District 24)Brett Clark (R)15%
State Representative (State House District 40)Greg Steuerwald (R)45%
State Representative (State House District 57)Craig Haggard (R)44%
State Representative (State House District 28)Jeff Thompson (R)12%

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 3585%
State Senate District 2415%

State house districtShare of ZIP residents
State House District 4045%
State House District 5744%
State House District 2812%

Voting precincts

28 voting precincts overlap ZIP 46168. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

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:46168")

ZIP 46168 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.