Established in 1854, Mount Oliver is a borough in Allegheny County, Pennsylvania, United States. The borough is located two miles (3 km) south of the city of Pittsburgh and is part of the South Side Flats area. The population of Mount Oliver was 2,397 at the 2010 census. Mount Oliver is believed to be named for John Oliver, a mill owner and one of the area’s first settlers. In the past, the area now occupied by Mount Oliver was mostly farmland. The Pittsburgh, Mount Oliver, and Castle Shannon Railroad Company purchased the farmland in 1853 to build a railroad line from Pittsburgh to Castle Shannon. The company built a railroad station in Mount Oliver in 1854, which led to the development of the borough around the station. Learn information about Pittsburgh, PA.
The borough was originally incorporated as a borough on January 19, 1876. The first borough election was held on February 21, 1876, when John A. Young was elected as the first borough president. Mount Oliver has a long history of coal mining and steel production. In the late 19th and early 20th centuries, the area was home to several coal mines and steel mills. The Mount Oliver Coal Company operated a mine in Mount Oliver from 1854 to 1931, and the Pittsburgh Coal Company operated a mine in the borough from 1886 to 1924. The Oliver Iron and Steel Company operated a steel mill in Mount Oliver from 1882 to 1902. Discover facts about McKees Rocks, Pennsylvania.