There are 2 Post Offices in Mendon, Illinois, serving a population of 843 people in an area of 1 square miles. There is 1 Post Office per 421 people, and 1 Post Office per square mile.
In Illinois, Mendon is ranked 389th of 1547 cities in Post Offices per capita, and 306th of 1547 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Mendon Post Offices.
US Post Office 102 West Collins Street Mendon, IL
United States Postal Service 102 West Collins Street Mendon, IL Mailbox Rental, Postal Services