Fairfield Township, Westmoreland County, Pennsylvania
|Incorporated||April 6, 1773|
|• Total||60.8 sq mi (157 km2)|
|• Land||60.5 sq mi (157 km2)|
|• Water||0.3 sq mi (0.8 km2)|
|• Density||41.9/sq mi (16.2/km2)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
According to the United States Census Bureau, the township has a total area of 60.8 square miles (157 km2), of which, 60.5 square miles (157 km2) of it is land and 0.3 square miles (0.78 km2) of it (0.48%) is water.
As of the census of 2000, there were 2,536 people, 950 households, and 737 families residing in the township. The population density was 41.9 people per square mile (16.2/km²). There were 1,141 housing units at an average density of 18.9/sq mi (7.3/km²). The racial makeup of the township was 98.74% White, 0.39% African American, 0.28% Native American, 0.04% Asian, 0.08% from other races, and 0.47% from two or more races. Hispanic or Latino of any race were 0.43% of the population.
There were 950 households out of which 31.2% had children under the age of 18 living with them, 65.9% were married couples living together, 8.3% had a female householder with no husband present, and 22.4% were non-families. 19.5% of all households were made up of individuals and 10.2% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 2.97.
In the township the population was spread out with 24.6% under the age of 18, 6.5% from 18 to 24, 29.1% from 25 to 44, 26.1% from 45 to 64, and 13.8% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 103.9 males. For every 100 females age 18 and over, there were 98.0 males.
The median income for a household in the township was $32,927, and the median income for a family was $37,177. Males had a median income of $37,422 versus $23,750 for females. The per capita income for the township was $18,284. About 12.1% of families and 15.5% of the population were below the poverty line, including 23.5% of those under age 18 and 9.2% of those age 65 or over.