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Siskiyou County, California Demographics 2026

Siskiyou County, California has a population of 43,466, the 45th most populous county in California. The median household income is $59,095 and the median home value is $309,500. The poverty rate is 16.4%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Siskiyou County Quick Facts

Population 43,466
Median Household Income $59,095
Median Home Value $309,500
Poverty Rate 16.4%
Unemployment Rate 7.9%
Median Age 47.2 years
Homeownership Rate 69.2%
Affordability Ratio 5.2x
Bachelor's Degree+ 23.3%
High School Graduation 91.7%
Cities/Places 20
Population 43,466 45th of 58
Median Income $59,095 40% lower than state
Poverty Rate 16.4%
Unemployment 7.9%

How Siskiyou County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric2019–20232020–2024Change
Population43,83443,466-0.8%
Median household income$55,499$59,095+6.5%
Median home value$284,500$309,500+8.8%

Economy & Housing

Household Income Distribution

Under $25K 21.5%
$25K-$50K 21.1%
$50K-$100K 30.4%
$100K+ 27.0%
Detailed income brackets
Under $10K
6.6%
$10K-$15K
5.1%
$15K-$20K
5.5%
$20K-$25K
4.3%
$25K-$30K
4.8%
$30K-$35K
4.2%
$35K-$40K
4.3%
$40K-$45K
4.3%
$45K-$50K
3.5%
$50K-$60K
7.8%
$60K-$75K
11.3%
$75K-$100K
11.3%
$100K-$125K
8.2%
$125K-$150K
6.3%
$150K-$200K
6.8%
$200K+
5.7%

Employment

7.9% Unemployment Rate State: 6.6%|National: 5.2%
50.9% Labor Force Participation

Housing Overview

Owner 69.2%
Renter 30.8%
Affordability Index Expensive
5.2x home value to income ratio
Median gross rent $1,091/mo 22.2% of median household income annually

People & Demographics

Diversity Index

44out of 100
Moderate Diversity

Moderate diversity with one or two groups making up the majority.

State average: 70 | National average: 61

Education

Cities & Places in Siskiyou County

CityPopulationMedian IncomePovertyHome Value
Yreka7,820$43,98217.0%$263,200
Mount Shasta3,182$47,91717.5%$330,200
Lake Shastina3,001$80,54212.2%$358,400
Weed2,737$38,85433.6%$259,600
Montague1,479$59,75026.5%$183,700
Dunsmuir1,407$58,28111.4%$279,000
Tulelake925$47,57423.6%$170,200
Dorris869$41,56319.1%$154,700
McCloud829$48,52920.8%$328,100
Etna642$49,06318.0%$221,200
Fort Jones562$47,37530.1%$228,700
Happy Camp539$41,37516.1%$166,400
Hornbrook268$32,22232.5%N/A
Grenada254$63,57115.0%$163,500
Macdoel184N/A15.2%N/A
Gazelle87$38,4383.5%$280,600
Greenview73$70,3658.2%$270,700
Mount Hebron73N/A4.1%N/A
Tennant71N/A0.0%$66,300
Carrick10N/A0.0%N/A

Population Overview

Siskiyou County is located in California with a total population of 43,466. It is the 45th most populous county out of 58 in California. The county encompasses 20 Census-designated places.

Age Demographics

The median age in Siskiyou County is 47.2 years. This is 25% higher than the state median of 37.9 years. 11.1% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Siskiyou County is $59,095. This is 40% lower than the state median of $99,122. It is also 27% lower than the national median of $80,734. The poverty rate stands at 16.4%. This is 36% higher than the state poverty rate of 12.0%. The unemployment rate is 7.9%. This is 19% higher than the state rate of 6.6%. The median home value is $309,500. Housing costs are 58% lower than the state median of $734,700. The home-value-to-income ratio is 5.2x. 69.2% of occupied housing units are owner-occupied. This homeownership rate is 24% higher than the state average of 55.9%.

Race & Ethnicity

The largest racial or ethnic group in Siskiyou County is White (non-Hispanic), making up 73.3% of the population. Hispanic or Latino residents account for 13.5%. The White (non-Hispanic) population is significantly higher than the state average (73.3% vs 33.8%). The Black or African American population (1.3%) is well below the state average of 5.2%. The Hispanic or Latino population (13.5%) is well below the state average of 40.2%. The Asian population (1.8%) is well below the state average of 15.3%.

Education

23.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 37% lower than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.7%.

Data Sources & Methodology

All figures for Siskiyou County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against California and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Siskiyou County, California?

Siskiyou County has a population of 43,466, making it the 45th most populous county in California.

What is the median income in Siskiyou County?

The median household income in Siskiyou County is $59,095 with a poverty rate of 16.4%.

How many cities are in Siskiyou County, California?

Siskiyou County contains 20 Census-designated places.