Sierra County, California
Located in California, Sierra County has a population of 2,746 residents and a median age of 54.7 years, making it the #3,056 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 4.4%. The median home value is $331,900, and the median household income is $63,355, which is 16% below the national median.
Demographics
Sierra County has a population of 2,746, making it the #3,056 most populous county in the US. The median age is 54.7 years, which is 40.6% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Sierra County is $63,355, ranking #1,761 out of 3,222 counties — 15.7% below the national median. The poverty rate is 4.4% and unemployment stands at 12.6%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Sierra County is $331,900 (+17.7% vs national). Renters pay a median of $0/mo and the homeownership rate is 72.1%.
Median Home Value Trend
Rankings →Household Type
Education
In Sierra County, 25.8% of adults age 25+ hold a bachelor's degree or higher, which is 23.4% below the national average, ranking #1,138 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Sierra County is 81.3 years. 17.3% of adults report poor or fair health and 6.3% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
15.1% of adults in Sierra County smoke , 31.3% are obese , and 23.3% report excessive drinking.
Adult Smoking Trend
Safety
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Families & Children
14.8% of children in Sierra County live in poverty . The teen birth rate is 25.7 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Sierra County is 79.3%. The mean commute time is 26.4 min, which is 4.3% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Sierra County voted Republican with a margin of 24.3%. The vote was 36.5% Dem / 60.8% Rep. Compared to 2020, the margin shifted 2.9 toward Republicans .
Vote Share Over Time
About Sierra County, California
Sierra County, California has a total population of 2,746, making it the 3,056th most populous county in the United States. The median age in Sierra County is 54.7 years, which is 40.6% above the national median of 38.9 years.
The median household income in Sierra County is $63,355, which ranks #1,761 of 3,222 counties nationwide. This is 15.7% below the national median of $75,149. The poverty rate is 4.4%, lower than the national rate of 12.6%. The unemployment rate stands at 12.6%.
The median home value in Sierra County is $331,900, 17.7% above the national median. The homeownership rate is 72.1%, compared to the national rate of 64.4%.
In Sierra County, 25.8% of residents aged 25 and older hold a bachelor's degree or higher, 23.4% below the national average of 33.7%. Health insurance coverage stands at 86.3% of the population. The average commute time for workers is 26.4 min.
Sierra County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 86.0% of the population, followed by Hispanic or Latino (11.0%) and Other (non-Hispanic) (2.1%).
All data for Sierra County, California comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.