Siskiyou County, California Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Siskiyou County, CA Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around averageLess healthy than 75% of counties in California
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D
Income Well below averageLess wealthy than 75% of counties in California
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D
Education Well below average
Source: Map AI Methodology
Population: density and quick facts
| Metric | Siskiyou County | California Avg | U.S. Average |
|---|---|---|---|
| Population | 43,469 | 39,245,658 | 337,468,954 |
| Population density (per sq mi) | 6.9 | 239.4 | 86.4 |
| Population growth (%/yr) | -0.05% | 0.19% | 0.59% |
| Median age | 45.1 | 35.5 | 37.3 |
| Households | 19,080 | 13,531,619 | 130,235,071 |
Population in Siskiyou County declined by 2.1% from 2009 to 2024, reaching 43,469 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Siskiyou County is Boomers, aged 61–79, at 26.2% of residents. That is 11.0 points above California as a whole.
- Gen Z 13–28 7,255 16.7% -5.0 pts
- Millennials 29–44 7,353 16.9% -6.7 pts
- Gen X 45–60 9,109 21.0% +1.1 pts
- Boomers 61–79 11,396 26.2% +11.0 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below California, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.0% of the people living in Siskiyou County and men 50.0%.
- Women 50.0% California 49.9%
- Men 50.0% California 50.1%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Siskiyou County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Siskiyou County has a the economy index of D, which means it is barely prosperous.
| Metric | Siskiyou County | California Avg | U.S. Average |
|---|---|---|---|
| Median household income | $59,421 | $99,161 | $80,455 |
| Income growth (%/yr) | 5.51% | 5.57% | 4.80% |
| Unemployment rate | 7.9% | 6.6% | 5.2% |
The median household income in Siskiyou County is about 40% lower than in California.
Housing
| Metric | Siskiyou County | California Avg | U.S. Average |
|---|---|---|---|
| Median home price | $196,249 | $650,794 | $248,835 |
| Median rent | $1,091 | $2,036 | $1,407 |
| Homeownership rate | 69.2% | 55.9% | 65.2% |
The median home price in Siskiyou County is about 15.0 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,091 per month for that long.
Commute Time & Mobility
Commuters in Siskiyou County spend about 32 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 135 hours, about 5.6 full days, spent commuting.
| Metric | Siskiyou County | California Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 16.2 | 23.5 | 22.4 |
| Round-trip commute (min) | 32.4 | 47.0 | 44.8 |
| Yearly time spent (hours) | 135 | 196 | 187 |
| Estimated yearly cost | $4,183 | $6,065 | $5,790 |
| Work from home | 11.8% | 17.2% | 15.0% |
| Highway traffic (vehicles/day) | 3,194 | 16,509 | 8,813 |
| Local road traffic (vehicles/day) | 251 | 2,449 | 1,355 |
Fastest commutes among counties in
California:
Inyo County (11.1 min), Mono County (12.0 min), Del Norte County (12.1 min).
Slowest:
Alpine County (31.3 min), San Benito County (31.2 min), Contra Costa County (31.0 min).
The average commute time in Siskiyou County is 16 minutes, shorter than the 23 minutes in California.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Siskiyou County has a education index of D, which means it is barely educated.
| Metric | Siskiyou County | California Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 20.2% | 33.0% | 31.6% |
| Average household size | 2.23 | 2.84 | 2.53 |
Highest education index among counties in
California:
Marin County (0.5), San Francisco County (0.4), Santa Clara County (0.4).
Lowest:
Colusa County (0.2), Merced County (0.2), Glenn County (0.2).
Health
Siskiyou County has a health index of B, which means it is quite healthy.
| Metric | Siskiyou County | California Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 78.9 | 79.6 | 78.3 |
| Self-rated poor health | 18.9% | 16.4% | 16.3% |
| Smokers | 16.3% | 13.9% | 19.0% |
Highest health index among counties in
California:
San Francisco County (0.8), San Mateo County (0.8), Santa Clara County (0.8).
Lowest:
Lake County (0.8), Imperial County (0.8), Tulare County (0.8).
Siskiyou County, CA Compared With Nearby Counties
Siskiyou County, CA is the smallest of the 5 counties compared here, 43,469 residents against a local median of 134,806. Siskiyou County, CA's median home price, at $196,249, runs 42% below the $335,874 typical of the counties around it.
The counties themselves sit within $93,287 of each other on median home price, a tighter band than the gap between any of them and Siskiyou County, CA, which makes it a genuine outlier here rather than one end of a wide local spread. Siskiyou County, CA has the 5th highest median home price of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Siskiyou County, CA | 43,469 | $59,421 #4/5 | $196,249 #5/5 | 16.2 min #2/5 |
| Jackson County, OR | 222,645 | $73,734 | $392,504 | 17.1 min |
| Shasta County, CA | 181,436 | $72,982 | $299,218 | 16.4 min |
| Josephine County, OR | 88,176 | $60,079 | $367,271 | 16.9 min |
| Klamath County, OR | 70,242 | $58,700 | $304,477 | 15.3 min |
Frequently Asked Questions
Common questions about Siskiyou County, California.
What is the population of Siskiyou County, California?
About 43,469 people live in Siskiyou County, California, in 19,080 households of 2.2 people on average. The median age is 45.1, so residents are older than the U.S. median of 37.3 by about 8 years.
Is Siskiyou County, California mostly urban or rural?
Averaged over its land area, Siskiyou County, California has 7 people per square mile, a density typical of rural areas. That is about 8% of the U.S. average of 86.
Is Siskiyou County, California an affordable place to live?
The median home costs 3.3 times the median household income ($196,249 against $59,421), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,091 a month takes about 22% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Is unemployment high in Siskiyou County, California?
Unemployment in Siskiyou County, California is 7.9%, well above the U.S. rate of 5.2%, so job seekers may face more competition than elsewhere.
How educated are people in Siskiyou County, California?
20.2% of adults in Siskiyou County, California hold a bachelor's degree or higher (about 1 in 5), well below the U.S. share of 31.6%.
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