 About 2.8% of families and 3.9% of the population were below the poverty line, including 4.6% of those under age 18 and 4.7% of those age 65 or over.Originally settled by the English Quakers from Chester County as early as 1730, and German immigrants from the York and Hanover areas in the late 18th century, much of the land now encompassed by Fairview Township was part of Pennsborough Township, Lancaster County.York County, when separated from Lancaster in 1749, had no definitely established northern boundary.