Strafford County

Strafford County was one of the five original counties identified for New Hampshire in 1769. It was named for William Wentworth, 2nd Earl of Strafford in the mistaken belief that he was the ancestor of governor John Wentworth. Although they were distantly related, William had no descendants. The county was organized at Dover in 1771. In 1840 the original size of the county was reduced with the creation of Belknap County.

Strafford County is a county located in the U.S. state of New Hampshire. As of 2010, the population was 123,143. Its county seat is Dover.