South Buffalo Township, Armstrong County, Pennsylvania

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South Buffalo Township, Pennsylvania
Countryside in South Buffalo Township
Countryside in South Buffalo Township
Map of Armstrong County, Pennsylvania highlighting South Buffalo Township
Map of Armstrong County, Pennsylvania highlighting South Buffalo Township
Map of Armstrong County, Pennsylvania
Map of Armstrong County, Pennsylvania
Country United States
State Pennsylvania
County Armstrong
Settled 1789
Incorporated 1847
 • Total 27.78 sq mi (71.95 km2)
 • Land 26.92 sq mi (69.72 km2)
 • Water 0.86 sq mi (2.22 km2)
Population (2010)
 • Total 2,636
 • Estimate (2016)[2] 2,590
 • Density 96.21/sq mi (37.15/km2)
Time zone UTC-5 (Eastern (EST))
 • Summer (DST) UTC-4 (EDT)
FIPS code 42-005-72000

South Buffalo Township is a township in Armstrong County, Pennsylvania, United States. The population was 2,636 at the 2010 census.[3]


The Allegheny River Lock and Dam No. 5 and Allegheny River Lock and Dam No. 6 are listed on the National Register of Historic Places.[4]


South Buffalo Township is located near the southwest corner of Armstrong County. The Allegheny River forms the southern and eastern border of the township, and Butler County lies along the western border. North Buffalo Township is to the north, and the borough of Freeport abuts the southwest edge of the township in the triangle between the Allegheny River and Butler County. Buffalo Creek flows through the western part of the township, joining the Allegheny at Freeport. Nicholson Island is within the township in the Allegheny River.

According to the United States Census Bureau, the township has a total area of 27.8 square miles (71.9 km2), of which 26.9 square miles (69.8 km2) is land and 0.81 square miles (2.1 km2), or 2.96%, is water.[3]


Historical population
Census Pop.
2010 2,636
Est. 2016 2,590 [2] −1.7%
U.S. Decennial Census[5]

As of the census[6] of 2000, there were 2,785 people, 1,013 households, and 808 families residing in the township. The population density was 102.8 people per square mile (39.7/km²). There were 1,048 housing units at an average density of 38.7/sq mi (14.9/km²). The racial makeup of the township was 99.21% White, 0.14% African American, 0.04% Asian, and 0.61% from two or more races. Hispanic or Latino of any race were 0.14% of the population.

There were 1,013 households, out of which 30.9% had children under the age of 18 living with them, 71.1% were married couples living together, 5.2% had a female householder with no husband present, and 20.2% were non-families. 17.4% of all households were made up of individuals, and 9.2% had someone living alone who was 65 years of age or older. The average household size was 2.74 and the average family size was 3.11.

In the township the population was spread out, with 22.8% under the age of 18, 8.4% from 18 to 24, 28.4% from 25 to 44, 27.3% from 45 to 64, and 13.0% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 104.2 males. For every 100 females age 18 and over, there were 105.1 males.

The median income for a household in the township was $42,222, and the median income for a family was $46,389. Males had a median income of $36,970 versus $21,895 for females. The per capita income for the township was $18,106. About 3.3% of families and 4.6% of the population were below the poverty line, including 4.8% of those under age 18 and none of those age 65 or over.


  1. ^ "2016 U.S. Gazetteer Files". United States Census Bureau. Retrieved Aug 13, 2017.
  2. ^ a b "Population and Housing Unit Estimates". Retrieved June 9, 2017.
  3. ^ a b "Geographic Identifiers: 2010 Demographic Profile Data (G001): South Buffalo township, Armstrong County, Pennsylvania". U.S. Census Bureau, American Factfinder. Retrieved August 2, 2013.
  4. ^ National Park Service (2010-07-09). "National Register Information System". National Register of Historic Places. National Park Service.
  5. ^ "Census of Population and Housing". Retrieved June 4, 2016.
  6. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.

External links

  • South Buffalo Township official website

Coordinates: 40°45′15″N 79°37′14″W / 40.75417°N 79.62056°W / 40.75417; -79.62056

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