Siskiyou County's estimated 2026 population is 41,612 with a growth rate of -1.05% in the past year according to the most recent United States census data. Siskiyou County is the 46th largest county in California. The 2010 population was 44,941 and has seen a growth of -7.41% since that time.
Data after 2023 is projected based on recent change
The racial composition of Siskiyou County includes 79.44% White, 3.24% Native American, and smaller percentages for other race, Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
White (79.44%)
Two or more races (11.17%)
Native American (3.24%)
Other race (2.46%)
Black or African American (1.68%)
Asian (1.62%)
Native Hawaiian or Pacific Islander (0.4%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 34,820 | 79.44% |
| Two or more races | 4,895 | 11.17% |
| Native American | 1,420 | 3.24% |
| Other race | 1,078 | 2.46% |
| Black or African American | 736 | 1.68% |
| Asian | 709 | 1.62% |
| Native Hawaiian or Pacific Islander | 176 | 0.4% |
Married
Widowed
Divorced
Separated
Never Married
Siskiyou County's average per capita income is $37,410. Household income levels show a median of $55,499. The poverty rate stands at 16.57%.
Name | Median | Mean |
|---|---|---|
| Married Families | $81,961 | $104,573 |
| Families | $71,583 | $93,550 |
| Households | $55,499 | $76,699 |
| Non Families | $31,903 | $48,144 |
Average Income
Median Household Income
Poverty Rate