Boundary Atlas

ZIP code 46278: Indianapolis city (balance), IN

ZIP code 46278 is in Indianapolis city (balance) (94% of residents), in Marion County (94%) and Hendricks County (5.6%), Indiana. 5.6% of its residents live outside city limits. It is in Indiana's 7th congressional district (94%) and Indiana's 4th congressional district (5.6%). Its state senate districts are State Senate District 29 (75%), State Senate District 30 (19%) and State Senate District 7 (5.6%); its state house districts are State House District 86 (94%), State House District 25 (5.6%), State House District 94 (0.2%) and State House District 92 (0.1%).

8,910residents (2020 Census)
13.2 sq miland area
1cities and towns
2congressional districts
11voting precincts

See it on the mapAll of Indiana

City and county

City or townShare of ZIP residents
Indianapolis city (balance)94%

CountyShare of ZIP residents
Marion County94%
Hendricks County5.6%

Town or county subdivisionShare of ZIP residents
Pike township94%
Brown township5.6%

Congressional districts

Congressional districtShare of ZIP residents
Indiana's 7th congressional district (IN-07)94%
Indiana's 4th congressional district (IN-04)5.6%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
MayorJoe Hogsett94%
U.S. Representative (IN-07)André Carson (D)202-225-401194%
U.S. Representative (IN-04)James R. Baird (R)202-225-50375.6%
U.S. SenatorJim Banks (R)202-224-4814statewide
U.S. SenatorTodd Young (R)202-224-5623 · contact formstatewide
State Senator (State Senate District 29)J.D. Ford (Democratic)75%
State Senator (State Senate District 30)Fady Qaddoura (Democratic)19%
State Senator (State Senate District 7)Brian Buchanan (R)5.6%
State Representative (State House District 86)Ed DeLaney (Democratic)94%
State Representative (State House District 25)Becky Cash (R)5.6%
State Representative (State House District 94)Cherrish Pryor (Democratic)0.2%
State Representative (State House District 92)Reneé Pack (Democratic)0.1%

From Wikidata (community-maintained); confirm on the city's website.

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); Mayors: Wikidata (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2975%
State Senate District 3019%
State Senate District 75.6%

State house districtShare of ZIP residents
State House District 8694%
State House District 255.6%
State House District 940.2%
State House District 920.1%

Voting precincts

11 voting precincts overlap ZIP 46278. 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:46278")

ZIP 46278 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.