Siskiyou County's estimated 2026 population is 41,536 with a growth rate of -1.14% 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 -7.58% since that time.
Data after 2023 is projected based on recent change
Overall: 47.2 years
Female: 49.2 years
Male: 45.6 years
There are 34,776 adults, (12,101 of whom are seniors) in Siskiyou County.
Female: 21,731 (50%)
Male: 21,735 (50%)
The racial composition of Siskiyou County includes 77.47% White, 3.26% Native American, and smaller percentages for other race, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 33,672 | 77.47% |
| Two or more races | 5,511 | 12.68% |
| Native American | 1,417 | 3.26% |
| Other race | 1,292 | 2.97% |
| Asian | 800 | 1.84% |
| Black or African American | 592 | 1.36% |
| Native Hawaiian or Pacific Islander | 182 | 0.42% |
Siskiyou County's average per capita income is $40,967. Household income levels show a median of $59,095. The poverty rate stands at 16.38%.
Name | Median | Mean |
|---|---|---|
| Married Families | $86,619 | $112,417 |
| Families | $74,427 | $101,256 |
| Households | $59,095 | $82,222 |
| Non Families | $33,049 | $48,090 |
Average Income
Median Household Income
Poverty Rate