ZIP Code 60304

60304 is one of Illinois's ZIP codes, delivering to addresses in Oak Park, Cook County.

City: Oak Park
County: Cook County
State: Illinois
Prefix: 603xx

Where this code sits

60304 is part of the 603xx range, the group of codes handled by one mail processing centre. Oak Park is served by 4 ZIP codes in total; the full list, with the county each falls in, is on the Oak Park page.

Oak Park Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 60304 delivers to without sharing its boundary.

ZIP codes nearest 60304

The ZIP codes whose reference points sit closest to 60304.
ZIP code	Distance	Delivers to
ZIP code 60303	0.9 mi	Oak Park, IL
ZIP code 60130	1.2 mi	Forest Park, IL
ZIP code 60301	1.2 mi	Oak Park, IL
ZIP code 60302	1.4 mi	Oak Park, IL
ZIP code 60644	1.7 mi	Chicago, IL
ZIP code 60305	2.1 mi	River Forest, IL
ZIP code 60141	2.6 mi	Hines, IL
ZIP code 60402	2.6 mi	Berwyn, IL

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 60304, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 60304. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.