Boundary Atlas

ZIP code 46342: Hobart, IN

ZIP code 46342 is in Hobart (83% of residents), New Chicago (5.6%), Lake Station (5.0%) and Merrillville (1.4%), in Lake County (96%) and Porter County (3.6%), Indiana. 5.3% of its residents live outside city limits. It is in Indiana's 1st congressional district. Its state senate districts are State Senate District 3 (96%), State Senate District 4 (2.0%) and State Senate District 5 (1.7%); its state house districts are State House District 3 (90%), State House District 19 (8.2%), State House District 10 (2.0%) and State House District 14 (0.2%).

32,540residents (2020 Census)
35.0 sq miland area
6cities and towns
1congressional district
29voting precincts

See it on the mapAll of Indiana

City and county

City or townShare of ZIP residents
Hobart83%
New Chicago5.6%
Lake Station5.0%
Merrillville1.4%
Portage0.5%
Wheeler0.1%

CountyShare of ZIP residents
Lake County96%
Porter County3.6%

Town or county subdivisionShare of ZIP residents
Hobart township88%
Ross township8.2%
Portage township2.0%
Union township1.7%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IN-01)Frank J. Mrvan (D)202-225-2461100%
U.S. SenatorJim Banks (R)202-224-4814statewide
U.S. SenatorTodd Young (R)202-224-5623 · contact formstatewide
State Senator (State Senate District 3)Mark Spencer (Democratic)96%
State Senator (State Senate District 4)Rodney Pol (Democratic)2.0%
State Senator (State Senate District 5)Ed Charbonneau (R)1.7%
State Representative (State House District 3)Ragen Hatcher (Democratic)90%
State Representative (State House District 19)Julie Olthoff (R)8.2%
State Representative (State House District 10)Chuck Moseley (Democratic)2.0%
State Representative (State House District 14)Vernon Smith (Democratic)0.2%

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 396%
State Senate District 42.0%
State Senate District 51.7%

State house districtShare of ZIP residents
State House District 390%
State House District 198.2%
State House District 102.0%
State House District 140.2%

Voting precincts

29 voting precincts overlap ZIP 46342. 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:

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ZIP 46342 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.