The county seat was at Bristol from 1705 to 1726 when it was moved 10 miles north, to Newtown, which served as the county seat for 87 years. In 1752 the county, which originally extended to the New York Colony line, was reduced to its present boundaries. As settlement crept northward, agitation began for changing the county seat to a more central location. In 1810, Governor Simon Snyder signed an Act appointing a commission to select a new site. The hilltop tract they chose has continued to serve as the seat of Bucks County for almost 200 years. Since 1812, three successive courthouses have occupied the site.
Currently, Bucks County is comprised of roughly 608 square miles of land and 15.8 square miles of water. There are approximately 620,000 people within 23 boroughs and 31 townships.
Pennsbury ManorBucks County is famous nationwide for its historic sites, including the Mercer Museum, Washington Crossing Historic Park, Pennsbury Manor, and Pearl S. Buck House.