
Addison
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 42.447
- State:
- Maine
Addison is located in Washington County, Maine. Addison has a 2025 population of 1,213. Addison is currently growing at a rate of 1.25% annually and its population has increased by 5.66% since the most recent census, which recorded a population of 1,148 in 2020.
The average household income in Addison is $67,205 with a poverty rate of 20.73%. The median age in Addison is 54.9 years: 55.9 years for males, and 54.5 years for females.