ZIP Codes in Oak Park, IL
Oak Park uses 3 ZIP codes, all in Cook County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 3 Oak Park ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 60301 | standard | Cook | 3,475 |
| 60302 | standard | Cook | 32,862 |
| 60304 | standard | Cook | 16,955 |
Finding a ZIP+4 in Oak Park
Knowing which of these 3 ZIP codes covers an address only gets you partway. The four-digit extension identifies the specific delivery point — typically one side of one block. Two houses facing each other on the same Oak Park street almost always have different ZIP+4 codes even though they share all five leading digits.
Appending ZIP+4 to a mailing list?
Upload a CSV of Oak Park addresses and download it complete.