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Rennerdale, Pennsylvania

Rennerdale, Pennsylvania
Census-designated place
Walker-Ewing Log House, built around 1790
Walker-Ewing Log House, built around 1790
Location in Allegheny County and state of Pennsylvania
Location in Allegheny County and state of Pennsylvania
Coordinates: 40°23′52″N 80°8′26″W / 40.39778°N 80.14056°W / 40.39778; -80.14056Coordinates: 40°23′52″N 80°8′26″W / 40.39778°N 80.14056°W / 40.39778; -80.14056
Country United States
State Pennsylvania
County Allegheny
Township Collier
Area
 • Total 0.8 sq mi (2.0 km2)
 • Land 0.8 sq mi (2.0 km2)
 • Water 0 sq mi (0 km2)
Population (2010)
 • Total 1,150
 • Density 1,500/sq mi (580/km2)
Time zone Eastern (EST) (UTC-5)
 • Summer (DST) EDT (UTC-4)

Rennerdale is an unincorporated community and census-designated place in Collier Township, Allegheny County, Pennsylvania, United States, about 9 miles (14 km) southwest of Pittsburgh. As of the 2010 census it had a population of 1,150.

Set in the Allegheny Plateau, Rennerdale is built on a southward-facing hill that slopes from 1,032 feet (315 m) down to 882 feet (269 m), where it approaches Robinson's Run, a creek that flows eastward toward Chartiers Creek and the Ohio River. The surrounding area was mined for coal from as early as 1870, but the only currently active extraction enterprise is a quarry east of the town.

An early settler of this region was James Ewing, who arrived in 1770 and built a grist mill on Robinson's Run. Gabriel Walker and Isaac Walker, Scots-Irish brothers from Lancaster County, Pennsylvania, arrived in 1772. Gabriel Walker's household was raided by Indians in 1782. Walker's Mills, the village east of Rennerdale, is named for Isaac Walker. Between 1760 and 1790, Gabriel Walker built a log cabin about 2 miles (3 km) northwest of present-day Rennerdale; today known as the Walker-Ewing Log House, the structure still stands. In 1976, it was placed on the National Register of Historic Places. Many Walkers have continued to live in the area up to the present day.

An 1876 atlas of Pittsburgh shows only these families residing on the land where Rennerdale is now located: Mrs. J. Maloney, James Hayes, J.E. Walker, E. Walker and G. Walker.


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