Easton is a city located in the state of Pennsylvania within the United States. It serves as the county seat for Northampton County and has a recorded population of 28,127 according to the 2020 census.
The city is geographically defined by its position along the Lehigh River, which flows into the Delaware River. The Delaware River marks the eastern boundary of Easton, separating it from the neighboring municipality of Phillipsburg, New Jersey.