Boundary Atlas

ZIP code 60409: Calumet City, IL

ZIP code 60409 is in Calumet City, in Cook County, Illinois. It is in Illinois's 2nd congressional district. Its state senate districts are State Senate District 17 (59%) and State Senate District 15 (41%); its state house districts are State House District 29 (41%), State House District 33 (35%) and State House District 34 (24%).

36,045residents (2020 Census)
7.7 sq miland area
1cities and towns
1congressional district
22voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Calumet City100%

CountyShare of ZIP residents
Cook County100%

Town or county subdivisionShare of ZIP residents
Thornton township100%

Congressional district

Congressional districtShare of ZIP residents
Illinois's 2nd congressional district (IL-02)100%

Members of Congress

OfficeMemberContact
U.S. Representative (IL-02)Robin L. Kelly (D)202-225-0773
U.S. SenatorRichard J. Durbin (D)202-224-2152 · contact form
U.S. SenatorTammy Duckworth (D)202-224-2854 · contact form

Members serving now (119th Congress, until January 3, 2027). Source: Members of Congress: the @unitedstates project, congress-legislators (CC0).

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1759%
State Senate District 1541%

State house districtShare of ZIP residents
State House District 2941%
State House District 3335%
State House District 3424%

Voting precincts

22 voting precincts overlap ZIP 60409. 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:60409")

ZIP 60409 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.