There are 2 Post Offices in Sullivan, Indiana, serving a population of 4,122 people in an area of 2 square miles. There is 1 Post Office per 2,061 people, and 1 Post Office per square mile.
In Indiana, Sullivan is ranked 492nd of 865 cities in Post Offices per capita, and 394th of 865 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Sullivan Post Offices.
United States Government 103 East Washington Street Sullivan, IN
United States Postal Service 103 East Washington Street Sullivan, IN Mailing Service, Postal Services