where is easton?
Easton, Pennsylvania. Easton is a city in and the county seat of Northampton County, Pennsylvania, United States. The city's population was 26,800 as of the 2010 census. Easton is located at the confluence of the Delaware River and the Lehigh River, roughly 55 miles (89 km) north of Philadelphia and 70 miles (110 km) west of the city of New York.