
Bloomfield
- County:
- Marin County
- County Seat:
- No
- Area (mi²):
- 8.138
- State:
- California
Bloomfield is a CDP located in Marin County, California. Bloomfield has a 2025 population of 160. Bloomfield is currently declining at a rate of -6.98% annually and its population has decreased by -34.16% since the most recent census, which recorded a population of 243 in 2020.
The average household income in Bloomfield is $150,320 with a poverty rate of 7.14%. The median age in Bloomfield is 60.9 years: 67.5 years for males, and 56.5 years for females.