WILKINSBURG, a borough of Allegheny county, Penn sylvania, U.S.A., on the Pennsylvania railroad, adjoining Pitts burgh on the east. Pop. (192o) 24,403 (89% native white) ; 193c) Federal census 29,639. It is a residential suburb, with little manu facturing. Wilkinsburg was settled in 1798; was first called Mc Nairville and later Rippeyville; and about 1840 was renamed in honour of William Wilkins, then a representative in Congress. It was incorporated as a borough in 1887.