Erwinna (/ɜːrˈwɪnə/ ur-WIN-ə) is an unincorporated community in Tinicum Township in Bucks County, Pennsylvania, United States. It is located approximately 40 miles (64 km) north as the crow flies of Center City, Philadelphia and approximately 40 miles (64 km) west of the city limits of New York City. It has an area code of 610 and is located along the Delaware Canal State Park. Its zip code is 18920.