
South Windham
- County:
- Cumberland County
- County Seat:
- No
- Area (mi²):
- 1.194
- State:
- Maine
South Windham is a CDP located in Cumberland County, Maine. South Windham has a 2025 population of 699. South Windham is currently declining at a rate of -6.05% annually and its population has decreased by -31.6% since the most recent census, which recorded a population of 1,022 in 2020.
The average household income in South Windham is $112,546 with a poverty rate of 11.85%. The median age in South Windham is 41.6 years: 41.9 years for males, and 33 years for females.