Plumas County's 2026 population is estimated at 18,393, reflecting a -1.02% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Plumas County is the 51st largest county in California. The 2010 population was 19,915 and has grown -7.64% since 2010.
Overall: 52 years
Female: 53.1 years
Male: 51.5 years
There are 16,087 adults, (6,114 of whom are seniors) in Plumas County.
Female: 9,488 (48.8%)
Male: 9,935 (51.2%)
The racial composition of Plumas County includes 83.75% White, and smaller percentages for Native American, other race, Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 16,266 | 83.75% |
| Two or more races | 1,647 | 8.48% |
| Native American | 549 | 2.83% |
| Other race | 449 | 2.31% |
| Black or African American | 315 | 1.62% |
| Asian | 196 | 1.01% |
| Native Hawaiian or Pacific Islander | 1 | 0.01% |
Plumas County 's average per capita income is $44,689. Household income levels show a median of $66,031. The poverty rate stands at 10.6%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $99,141 | - |
| Families | $88,625 | $115,366 |
| Households | $66,031 | $96,802 |
| Non Families | $43,337 | $57,390 |
Average Income
Median Household Income
Poverty Rate