Boundary Atlas

ZIP code 60422: Flossmoor, IL

ZIP code 60422 is in Flossmoor (98% of residents) and Chicago Heights (1.8%), in Cook County, Illinois. It is in Illinois's 2nd congressional district. Its state senate districts are State Senate District 15 (93%) and State Senate District 40 (7.0%); its state house districts are State House District 30 (93%) and State House District 80 (7.0%).

9,927residents (2020 Census)
4.0 sq miland area
2cities and towns
1congressional district
11voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Flossmoor98%
Chicago Heights1.8%

CountyShare of ZIP residents
Cook County100%

Town or county subdivisionShare of ZIP residents
Rich township75%
Bloom township25%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1593%
State Senate District 407.0%

State house districtShare of ZIP residents
State House District 3093%
State House District 807.0%

Voting precincts

11 voting precincts overlap ZIP 60422. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

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:60422")

ZIP 60422 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.