Boundary Atlas

ZIP code 60657: Chicago, IL

ZIP code 60657 is in Chicago, in Cook County, Illinois. It is in Illinois's 5th congressional district. Its state senate districts are State Senate District 6 (96%) and State Senate District 20 (3.6%); its state house districts are State House District 11 (57%), State House District 12 (39%) and State House District 40 (3.6%).

72,316residents (2020 Census)
2.2 sq miland area
1cities and towns
1congressional district
39voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Chicago100%

CountyShare of ZIP residents
Cook County100%

Town or county subdivisionShare of ZIP residents
Chicago city100%

Congressional district

Congressional districtShare of ZIP residents
Illinois's 5th congressional district (IL-05)100%

Elected officials

OfficeMemberContactShare of residents
MayorBrandon Johnson312-744-9500100%
U.S. Representative (IL-05)Mike Quigley (D)202-225-4061100%
U.S. SenatorRichard J. Durbin (D)202-224-2152 · contact formstatewide
U.S. SenatorTammy Duckworth (D)202-224-2854 · contact formstatewide
State Senator (State Senate District 6)Sara Feigenholtz (Democratic)773-296-414196%
State Senator (State Senate District 20)Graciela Guzmán (Democratic)773-278-20203.6%
State Representative (State House District 11)Ann Williams (Democratic)773-880-908257%
State Representative (State House District 12)Margaret Croke (Democratic)773-348-897439%
State Representative (State House District 40)Jaime Andrade (Democratic)773-267-28803.6%

Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); 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 696%
State Senate District 203.6%

State house districtShare of ZIP residents
State House District 1157%
State House District 1239%
State House District 403.6%

Voting precincts

39 voting precincts overlap ZIP 60657. 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:60657")

ZIP 60657 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.