Allegheny County is a county in Pennsylvania, United States. It is located in Southwestern Pennsylvania. As of the 2020 census, the population was 1,250,578, making it the state's second-most populous county, after Philadelphia County. Its county seat and most populous city is Pittsburgh, Pennsylvania's second most populous city. Allegheny County is the center of the Pittsburgh, PA metropolitan statistical area and the Pittsburgh media market.
Westmoreland County is a county in the Commonwealth of Pennsylvania, United States, located in the Pittsburgh Metropolitan Statistical Area. As of the 2020 census, the population was 354,663. The county seat is Greensburg and the most populous community is Hempfield Township. It is named after Westmorland, a historic county of England.
Washington County is a county in the Commonwealth of Pennsylvania, United States. As of the 2020 census, the population was 209,349. Its county seat is Washington.
Fayette County is a county in the Commonwealth of Pennsylvania. It is located in southwestern Pennsylvania, adjacent to Maryland and West Virginia. As of the 2020 census, the population was 128,804. Its county seat is Uniontown. The county was created on September 26, 1783, from part of Westmoreland County and named after the Marquis de Lafayette.
Monroeville is a home rule municipality in Allegheny County, Pennsylvania, United States. It is a suburb with mixed residential and commercial developments located about 10 miles (16 km) east of Pittsburgh. As of the 2020 census, Monroeville was home to 28,640 people.
Penn Hills is a township with home rule status in Allegheny County, Pennsylvania, United States. The population was 41,059 as of the 2020 census. A suburb of Pittsburgh, Penn Hills is the second-largest municipality in Allegheny County.
Plum is a borough in Allegheny County, Pennsylvania, United States. The population was 27,144 at the 2020 census. A suburb of the Pittsburgh metropolitan area, it is located northeast of the city in what is commonly referred to as the East Hills suburbs.
East Brandywine Township is a township in Chester County, Pennsylvania, United States. The population was 9,746 at the 2020 census.
Upper Tyrone Township is a township that is located in Fayette County, Pennsylvania, United States. The population was 1,768 at the time of the 2020 census. It is served by the Southmoreland School District.
Barnett Township is a township in Forest County, Pennsylvania, United States. The population was 308 at the 2020 census, down from 361 in 2010.
Penn Township is a township in Huntingdon County, Pennsylvania, United States. The population was 1,086 at the 2020 census. The township includes the village of Hesston and the Seven Points Marina of Raystown Lake.
Delmont is a borough in Westmoreland County, Pennsylvania. The population was 2,592 at the 2020 census.
Harrison City is a census-designated place (CDP) in Westmoreland County, Pennsylvania, United States. The population was 174 at the 2020 census.
Hempfield Township is a township in Westmoreland County, Pennsylvania, United States. The population was 41,585 at the 2020 census, making it the largest suburb in the Pittsburgh Metropolitan Area by population. Its name is derived from Hempfield in Lancaster County, which was formed in 1729 and is named after the hemp fields in the area.
Murrysville is a home rule municipality in Westmoreland County, Pennsylvania, United States. The population was 21,006 at the 2020 census. It is part of the Pittsburgh metropolitan area.
Unity Township is a township in Westmoreland County, Pennsylvania, United States. The population was 21,724 at the 2020 census, a decline of approximately 4% compared to the 2010 census.
Trafford is a borough in Allegheny and Westmoreland counties in the U.S. state of Pennsylvania. Located near Pittsburgh in western Pennsylvania, the borough lies primarily in Westmoreland County; only a small portion extends into Allegheny County. It was incorporated in 1904 from the northernmost corner of North Huntingdon Township, and was named by George Westinghouse for Trafford near Manchester, England. Westinghouse purchased the land in 1902, and the Trafford Foundry began operations on October 3, 1903. The population was 3,317 at the 2020 census. Of this, 3,113 were in Westmoreland County, and only 61 were in Allegheny County.
Harrison Township is a township in Allegheny County in the U.S. state of Pennsylvania. The population was 10,169 at the 2020 census. Pennsylvania Route 28 passes through Harrison Township, connecting Kittanning to the northeast and Pittsburgh to the southwest. Allegheny Technologies has extensive steel mill facilities in Harrison Township, including its Allegheny Ludlum Brackenridge Works. Harrison Township is located at the far northeast corner of Allegheny County. Its northern border is the Butler County line and the Allegheny River forms the township's eastern boundary with Westmoreland County. Its northeast corner also touches Armstrong County.
Pennsylvania Route 380, also known as J.F. Bonetto Memorial Highway and within the city of Pittsburgh Bigelow Boulevard, Baum Boulevard and Frankstown Road, is a 32.80 mi (52.8 km) long state highway in western portions of the U.S. state of Pennsylvania. The western terminus of the route is at Interstate 579 in downtown Pittsburgh near PPG Paints Arena. The eastern terminus is at Pennsylvania Route 286 in Bell Township, near the hamlet of Wakena.
Pennsylvania Route 993 is a 14.4-mile-long (23.2 km) state highway located in Westmoreland County, Pennsylvania. The western terminus is at PA 130 in Trafford. The eastern terminus is at PA 66 Business in Hempfield Township. The route connects several of the eastern suburban communities of Pittsburgh, before ending in a rural area in between two urbanized fingers, Jeannette and Greensburg.
