Wethersfield is a town in Hartford County, Connecticut, USA, immediately south of Hartford along the Connecticut River and Interstate 91. Many records from colonial times spell the name "Weathersfield", while Native Americans called it "Pyquag". The town's motto is "Ye Most Auncient Towne in Connecticut", and its population was 26,668 in the 2010 census. The neighborhood known as Old Wethersfield is the state's largest historic district, spanning two square miles and 1,100 buildings, many dating back to the 18th and 19th centuries. Founded in 1634 by a Puritan settlement party including John Oldham, Robert Seeley and Nathaniel Foote, Wethersfield is arguably the oldest town in Connecticut, depending on one's interpretation of when a remote settlement qualifies as a "town". Along with Windsor and Hartford, Wethersfield is represented by one of the three grapevines on the Flag of Connecticut, signifying the state's three oldest European settlements. The town took its name from Wethersfield, a village in the English county of Essex.