There are 7 Post Offices in Union County, Illinois, serving a population of 17,267 people in an area of 414 square miles. There is 1 Post Office per 2,466 people, and 1 Post Office per 59 square miles.
In Illinois, Union County is ranked 53rd of 102 counties in Post Offices per capita, and 77th of 102 counties in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Union County Post Offices.
United States Postal Service 85 North Elm Street Alto Pass, IL Mailing Service, Postal Services
United States Postal Service 113 South Appleknocker Street Cobden, IL Mailing Service, Postal Services
United States Postal Service 103 West Broad Street Jonesboro, IL Mailing Service, Postal Services
United States Postal Service 60 Walnut Street Mill Creek, IL Mailing Service, Postal Services
United States Postal Service 4675 North State Route 3 Wolf Lake, IL Mailing Service, Postal Services
United States Postal Service 201 North Main Street Anna, IL Mailing Service, Postal Services
United States Postal Service 106 East Cross Street Dongola, IL Mailing Service, Postal Services