There are 2 Post Offices in Columbia, Pennsylvania, serving a population of 10,430 people in an area of 3 square miles. There is 1 Post Office per 5,215 people, and 1 Post Office per 1 square miles.
In Pennsylvania, Columbia is ranked 1,394th of 2580 cities in Post Offices per capita, and 1,169th of 2580 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Columbia Post Offices.
US Post Office 53 North 4th Street Columbia, PA
United States Postal Service 53 North 4th Street Columbia, PA Mailing Service, Postal Services