
Calais
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 34.323
- State:
- Maine
Calais is a city located in Washington County, Maine. Calais has a 2025 population of 3,154. Calais is currently growing at a rate of 0.45% annually and its population has increased by 2.3% since the most recent census, which recorded a population of 3,083 in 2020.
The average household income in Calais is $66,946 with a poverty rate of 22.18%. The median age in Calais is 43.8 years: 35.7 years for males, and 48.8 years for females.