There are 2 Post Offices in Oak Park, Illinois, serving a population of 52,229 people in an area of 5 square miles. There is 1 Post Office per 26,114 people, and 1 Post Office per 2 square miles.
In Illinois, Oak Park is ranked 1,108th of 1547 cities in Post Offices per capita, and 811st of 1547 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Oak Park Post Offices.
United States Postal Service 1116 Garfield Street Oak Park, IL Mailing Service, Postal Services
United States Postal Service 901 Lake Street Oak Park, IL Mailing Service, Postal Services