ZIP code 60643: Chicago, IL
ZIP code 60643 is in Chicago, in Cook County, Illinois. It is in Illinois's 1st congressional district (79%) and Illinois's 6th congressional district (21%). Its state senate districts are State Senate District 14 (53%), State Senate District 18 (46%) and State Senate District 16 (1.6%); its state house districts are State House District 27 (47%), State House District 35 (37%), State House District 36 (9.3%), State House District 28 (6.1%) and State House District 31 (1.6%).
See it on the mapAll of Illinois
City and county
| City or town | Share of ZIP residents |
|---|---|
| Chicago | 100% |
| County | Share of ZIP residents |
|---|---|
| Cook County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Chicago city | 100% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Illinois's 1st congressional district (IL-01) | 79% |
| Illinois's 6th congressional district (IL-06) | 21% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 14 | 53% |
| State Senate District 18 | 46% |
| State Senate District 16 | 1.6% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 27 | 47% |
| State House District 35 | 37% |
| State House District 36 | 9.3% |
| State House District 28 | 6.1% |
| State House District 31 | 1.6% |
Voting precincts
39 voting precincts overlap ZIP 60643. 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:60643")
ZIP 60643 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.