Quinnipiac River in East Haven, 1907]] According to the United States Census Bureau, the town has a total area of 39.9 square miles (103.3 km²), of which 39.0 square miles (101.1 km²) is land and 0.9 square miles (2.2 km²), or 2.16%, is water.
East Haven has a labor force of 16,751.