There are 2 Post Offices in Rock Island, Illinois, serving a population of 38,560 people in an area of 17 square miles. There is 1 Post Office per 19,280 people, and 1 Post Office per 8 square miles.
In Illinois, Rock Island is ranked 1,079th of 1547 cities in Post Offices per capita, and 1,074th of 1547 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Rock Island Post Offices.
United States Postal Service 2633 11th Street Rock Island, IL Mailing Service, Postal Services
United States Postal Service 1956 2nd Avenue Rock Island, IL Mailing Service, Postal Services