ZIP code 60304: Oak Park, IL
ZIP code 60304 is in Oak Park, in Cook County, Illinois. It is in Illinois's 7th congressional district (100%) and Illinois's 4th congressional district (<0.1%). Its state senate districts are State Senate District 39 (73%) and State Senate District 4 (27%); its state house districts are State House District 78 (73%) and State House District 8 (27%).
See it on the mapAll of Illinois
City and county
| City or town | Share of ZIP residents |
|---|---|
| Oak Park | 100% |
| County | Share of ZIP residents |
|---|---|
| Cook County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Oak Park township | 100% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Illinois's 7th congressional district (IL-07) | 100% |
| Illinois's 4th congressional district (IL-04) | <0.1% |
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.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-07) | Danny K. Davis (D) | 202-225-5006 | 100% |
| U.S. Representative (IL-04) | Jesús G. "Chuy" García (D) | 202-225-8203 | <0.1% |
| U.S. Senator | Richard J. Durbin (D) | 202-224-2152 · contact form | statewide |
| U.S. Senator | Tammy Duckworth (D) | 202-224-2854 · contact form | statewide |
| State Senator (State Senate District 39) | Don Harmon (Democratic) | 708-848-2002 | 73% |
| State Senator (State Senate District 4) | Kimberly Lightford (Democratic) | 708-632-4500 | 27% |
| State Representative (State House District 78) | Camille Lilly (Democratic) | 773-473-7300 | 73% |
| State Representative (State House District 8) | La Shawn Ford (Democratic) | 773-750-0866 | 27% |
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
- Oak Park website: http://www.oak-park.us/
- Oak Park laws: search for the Oak Park, Illinois code of ordinances
- Cook County website: https://www.cookcountyil.gov/
- Cook County laws: search for the Cook County, Illinois code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 39 | 73% |
| State Senate District 4 | 27% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 78 | 73% |
| State House District 8 | 27% |
Voting precincts
11 voting precincts overlap ZIP 60304. 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:60304")
ZIP 60304 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.