| Name | Lassen County |
| State | California |
| FIPS Code | 06035 |
| County Seat | Susanville |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2024) | 28,838 |
| Population Growth Rate(2020-2024) | -13.51% |
| Majority Ethnicity | White 65.55% |
| Public School Majority Ethnicity | White 63% |
| Partisan Voting Index | Strongly Republican:+27 |
| Unemployment Rate (May 2026) | 7.8% |
| Sales Tax Rate (2025) | 7.25% |
| Area Code(s) | 530 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 65.55% |
| African American | 7.87% |
| Hispanic | 21.46% |
| Asian | 1.66% |
| Native American | 2.58% |
| Hawaiin/Pacific Islander | 0.9% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 62.6% |
| African American | 1.15% |
| Hispanic | 21.89% |
| Asian | 1.29% |
| Native American | 3.31% |
| Hawaiin/Pacific Islander | 1.68% |