About Main Township
Main Township is a township in Columbia County, Pennsylvania, United States. The population was 1,236 at the 2010 census.
Geography
According to the United States Census Bureau, the township has a total area of 16.7 square miles (43.2 km²), of which, 16.2 square miles (42.0 km²) of it is land and 0.5 square miles (1.2 km²) of it (2.76%) is water.
Demographics
As of the census[1] of 2010, there were 1,236 people, 513 households, and families residing in the township. The population density was 79.6 people per square mile (30.7/km²). There were 490 housing units at an average density of 30.2/sq mi (11.7/km²). The racial makeup of the township was 98.22% White, 1.01% African American, 0.31% Asian, 0.31% Pacific Islander, 0.08% from other races, and 0.08% from two or more races. Hispanic or Latino of any race were 0.78% of the population.
There were 469 households out of which 38.0% had children under the age of 18 living with them, 67.0% were married couples living together, 8.3% had a female householder with no husband present, and 21.1% were non-families. 17.7% of all households were made up of individuals and 6.6% had someone living alone who was 65 years of age or older. The average household size was 2.73 and the average family size was 3.09.
In the township the population was spread out with 27.9% under 
the age of 18, 8.1% from 18 to 24, 26.7% from 25 to 44, 26.9% from 45 to 64, and 10.4% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 101.7 males. For every 100 females age 18 and over, there were 95.8 males.
The median income for a household in the township was $41,339, and the median income for a family was $47,574. Males had a median income of $32,069 versus $21,250 for females. The per capita income for the township was $19,357. About 6.9% of families and 7.8% of the population were below the poverty line, including 6.1% of those under age 18 and 7.7% of those age 65 or over.
References
“American FactFinder”. United States Census Bureau. Retrieved 2008-01-31.