There are 2 Post Offices in Castalia, Ohio, serving a population of 892 people in an area of 2 square miles. There is 1 Post Office per 446 people, and 1 Post Office per square mile.
In Ohio, Castalia is ranked 381st of 1454 cities in Post Offices per capita, and 373rd of 1454 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Castalia Post Offices.
US Navy 105 North Water Street Castalia, OH
United States Postal Service 105 North Water Street Castalia, OH Mailbox Rental, Mailing Service, Postal Services