Columbia County Post Offices

90 S Leiby St
Aristes, Pennsylvania 17920

250 Third St
Benton, Pennsylvania 17814

330 Pine St
Berwick, Pennsylvania 18603

230 Market St
Bloomsburg, Pennsylvania 17815

121 N 3rd St
Catawissa, Pennsylvania 17820

206 Market St
Mifflinville, Pennsylvania 18631

10 E Main St
Millville, Pennsylvania 17846

1114 Numidia Dr
Numidia, Pennsylvania 17858

410 Mill St
Orangeville, Pennsylvania 17859

300 Smith St
Wilburton, Pennsylvania 17888

Columbia County

There are 10 US Post Offices in Columbia County serving a total of 69,490 residents equating to 6,949 residents per post office. It's estimated that approximately 110,914 packages are handled across the 10 county post offices annually. Columbia County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 67,295. Its county seat is Bloomsburg. The county was created on March 22, 1813, from part of Northumberland County and named for Columbia, a poetic name for the United States that alludes to Christopher Columbus. Columbia County is part of the Bloomsburg-Berwick, PA Metropolitan Statistical Area."