Wilkinsburg is a borough in Allegheny County, Pennsylvania, United States. The borough has a population of 14,349 as of the 2020 census. Wilkinsburg is located as part of the Pittsburgh metropolitan area. The borough was named for John Wilkins Jr., a United States Army officer who served as Quartermaster General of the United States Army from 17…Wilkinsburg is a borough in Allegheny County, Pennsylvania, United States. The borough has a population of 14,349 as of the 2020 census. Wilkinsburg is located as part of the Pittsburgh metropolitan area. The borough was named for John Wilkins Jr., a United States Army officer who served as Quartermaster General of the United States Army from 1796 to 1802.