There are 2 Post Offices in Castle, Oklahoma, serving a population of 161 people in an area of 1 square miles. There is 1 Post Office per 80 people, and 1 Post Office per square mile.
In Oklahoma, Castle is ranked 86th of 815 cities in Post Offices per capita, and 52nd of 815 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Castle Post Offices.
US Post Office 401 Main Street Castle, OK
United States Postal Service 401 Main Street Castle, OK Mailing Service, Postal Services