| Place Name | Grimes |
| Place Type | Census Designated Place |
| ZIP Code(s) | 95912 |
| County | Colusa County |
| Area Code(s) | 530 |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2022) | 497 |
| Population Growth Rate (2010-19) | -24.30% |
| Majority Ethnicity | White 71.34% |
| US Congressional District(s) | California 3rd |
| State Assembly Districts | 4 |
| State Senate Districts | 4 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 71.34% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 28.66% |