
Grimes
- County:
- Colusa County
- County Seat:
- No
- Area (mi²):
- 2.261
- State:
- California
Grimes is a CDP located in Colusa County, California. Grimes has a 2025 population of 346. Grimes is currently declining at a rate of -0.86% annually and its population has decreased by -25.11% since the most recent census, which recorded a population of 462 in 2020.
The average household income in Grimes is $60,491 with a poverty rate of 45.28%. The median age in Grimes is 57.6 years: 57.5 years for males, and 57.7 years for females.