
South Berwick
- County:
- York County
- County Seat:
- No
- Area (mi²):
- 32.134
- State:
- Maine
South Berwick is located in York County, Maine. South Berwick has a 2025 population of 7,915. South Berwick is currently growing at a rate of 1.03% annually and its population has increased by 5.84% since the most recent census, which recorded a population of 7,478 in 2020.
The average household income in South Berwick is $124,789 with a poverty rate of 2.99%. The median age in South Berwick is 39.8 years: 40.2 years for males, and 39.3 years for females.