There are 2 Post Offices in Decatur, Illinois, serving a population of 73,505 people in an area of 43 square miles. There is 1 Post Office per 36,752 people, and 1 Post Office per 21 square miles.
In Illinois, Decatur is ranked 1,121st of 1547 cities in Post Offices per capita, and 1,137th of 1547 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Decatur Post Offices.
United States Postal Service 214 North Franklin Street Floor 1 Decatur, IL Mailing Service, Postal Services
United States Postal Service 1601 East Mound Road Decatur, IL Mailing Service, Postal Services