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Rostraver Township, Westmoreland County, Pennsylvania facts for kids

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Rostraver Township, Pennsylvania
The Old Concord School, built 1830
The Old Concord School, built 1830
Map of Westmoreland County, Pennsylvania Highlighting Rostraver Township
Map of Westmoreland County, Pennsylvania Highlighting Rostraver Township
Map of Pennsylvania highlighting Westmoreland County
Map of Pennsylvania highlighting
Westmoreland County
Country United States
State Pennsylvania
County Westmoreland
 • Total 32.95 sq mi (85.34 km2)
 • Land 32.28 sq mi (83.61 km2)
 • Water 0.67 sq mi (1.73 km2)
 • Total 11,363
 • Estimate 
 • Density 343.52/sq mi (132.63/km2)
Time zone UTC-5 (Eastern (EST))
 • Summer (DST) UTC-4 (EDT)
FIPS code 42-129-66376

Rostraver Township is a township in Westmoreland County, Pennsylvania, United States. The population was 11,634 at the 2000 census.


Rostraver Township is in the southwestern corner of Westmoreland County and is the location of the Household No. 1 Site, which was once occupied by a Monongahela village. It is listed on the National Register of Historic Places.

The name of the township has been traced back to Rostrevor, a seaside community in County Down, Ireland. It is known that some of the early settlers, such as the McClains, came from County Down so it is surmised that they probably named their new community out of affection for the native village and spelled it phonetically as Rostraver Unfortunately, they neglected to leave to posterity any record of having done so.


According to the United States Census Bureau, the township has a total area of 32.9 square miles (85.2 km²), of which 32.2 square miles (83.4 km²) is land and 0.7 square miles (1.8 km²; 2.13%) is water.


Historical population
Census Pop.
1990 11,224
2000 11,634 3.7%
2010 11,363 −2.3%
2020 (est.) 11,393 0.3%
U.S. Decennial Census

As of the census of 2000, there were 11,634 people, 4,590 households, and 3,442 families residing in the township. The population density was 361.5 people per square mile (139.5/km2). There were 4,920 housing units at an average density of 152.9/sq mi (59.0/km2). The racial makeup of the township was 96.90% White, 1.94% African American, 0.12% Native American, 0.28% Asian, 0.03% Pacific Islander, 0.16% from other races, and 0.57% from two or more races. Hispanic or Latino of any race were 0.52% of the population.

There were 4,590 households, out of which 30.8% had children under the age of 18 living with them, 60.6% were married couples living together, 10.5% had a female householder with no husband present, and 25.0% were non-families. 22.2% of all households were made up of individuals, and 10.1% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 2.96.

In the township the population was spread out, with 23.4% under the age of 18, 6.2% from 18 to 24, 28.3% from 25 to 44, 25.6% from 45 to 64, and 16.5% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 95.3 males. For every 100 females age 18 and over, there were 92.5 males. The median income for a household in the township was $39,538, and the median income for a family was $48,115. Males had a median income of $36,860 versus $26,799 for females. The per capita income for the township was $20,455. About 5.5% of families and 6.6% of the population were below the poverty line, including 11.8% of those under age 18 and 2.7% of those age 65 or over.

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