Boundary Atlas

East Chicago, Indiana

East Chicago is a city in Lake County, Indiana, with 26,370 residents in 2020. It is in Indiana's 1st congressional district. It spans 2 state house districts. Its state senate district is State Senate District 2.

26,370residents (2020 Census)
14.1 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Lake County100%

Congressional district

Congressional districtShare of 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 2)Lonnie Randolph (Democratic)100%
State Representative (State House District 2)Earl Harris (Democratic)96%
State Representative (State House District 1)Carolyn Jackson (Democratic)3.8%

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 residents
State Senate District 2100%

State house districtShare of residents
State House District 296%
State House District 13.8%

ZIP codes

Percentages mark ZIPs only partly in East Chicago: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get East Chicago's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:1819486")

East Chicago here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.