
Richmond
- County:
- Sagadahoc County
- County Seat:
- No
- Area (mi²):
- 30.429
- State:
- Maine
Richmond is located in Sagadahoc County, Maine. Richmond has a 2025 population of 3,566. Richmond is currently declining at a rate of -0.08% annually but its population has increased by 1.13% since the most recent census, which recorded a population of 3,526 in 2020.
The average household income in Richmond is $75,819 with a poverty rate of 11.92%. The median age in Richmond is 37.6 years: 36.5 years for males, and 42.2 years for females.