Lassen County, California Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 47th-largest in California
The population of Lassen County, California is 31,177 as of the 2023 American Community Survey, making it the 47th-largest county in California. The median household income is $64,395, the median home value is $259,500, and the median age is 37.8.
The population of Lassen County has declined 18.6% since 2010 (34,828 → 28,340), a -1.46% annualized rate.
31,177
Population
-1.46%
Annual growth
7
People / sq mi
$64,395
Median Income
$259,500
Median Home Value
Lassen County covers 4,541 sq mi of land at 6.9 people per square mile.
About Lassen County, CA
Lassen County is a county in California with a population of 31,177. It ranks #47 among counties in California by population. The median age is 37.8, in line with the national median. The population is 62.1% male and 37.9% female.
The median household income in Lassen County is $64,395, below the US median of $74,580. 10.1% of residents live below the federal poverty level. Home values sit at a median of $259,500, with monthly rent averaging $1,043. The homeownership rate of 68.2% is higher than the national rate of 64.8%.
Educational attainment in Lassen County reflects 13.2% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 6.7% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 19.0 minutes each way.
Lassen County Population History (2010-2024)
The county of Lassen County had a population of 34,828 in 2010 and 28,340 in 2024, a -18.6% growth over 14 years. The peak was 34,828 in 2010. Average annual growth rate: -1.43%.
28,340
Population (2024)
34,828
Population (2010)
34,828
Peak (2010)
-1.43%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 34,828 |
| 2011 | 34,235 |
| 2012 | 33,622 |
| 2013 | 32,128 |
| 2014 | 31,664 |
| 2015 | 31,256 |
| 2016 | 30,715 |
| 2017 | 30,919 |
| 2018 | 30,658 |
| 2019 | 30,694 |
| 2020 | 32,319 |
| 2021 | 31,884 |
| 2022 | 30,401 |
| 2023 | 28,838 |
| 2024 | 28,340 |
Race & Ethnicity
| White | 68.9% |
| Black or African American | 8.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 5.1% |
| Two or More Races | 0.1% |
Age & Sex
37.8
Median Age
37.9%
Female
62.1%
Male
15.9%
Age 65+
Age Distribution
Children (under 15): 14.7% · Seniors (65+): 15.9%
Income & Poverty
| Median household income | $64,395$-31,939 vs state |
| Mean household income | $81,066 |
| Per-capita income | $25,852 |
| Poverty rate | 10.1%+1.7% vs state |
| Unemployment rate | 3.0% |
| Employment-to-population | 36.5% |
Top Industries by Employment
The largest employment sector in Lassen County is public administration, accounting for 28.0% of workers.
How residents commute
0.4%
Drive alone
2.7%
Carpool
76.0%
Public transit
6.7%
Work from home
19.0 min
Avg commute
Housing
$259,500$-435,900 vs state
Median home value
$1,043
Median rent
68.2%
Homeownership rate
12,232
Total housing units
74.1%
Occupied
25.9%
Vacant
31.8%
Renter-occupied
Social & access
93.3%
With health insurance
92.4%
With broadband internet
22.1%
Foreign-born
7.9%
Veterans (18+)
18.1%
With a disability
81.9%
Speak language other than English at home
Education
79.1%
High School+
13.2%
Bachelor's+
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Part of California
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County rankings
Frequently Asked Questions
Lassen County, California has a population of 31,177 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 47th-largest county in California. Population density is 7 people per square mile.
The population of Lassen County has declined 18.6% since 2010 (34,828 → 28,340), a -1.46% annualized rate.
The median household income in Lassen County, California is $64,395, with mean (average) household income of $81,066 and per-capita income of $25,852. 10.1% of residents live below the federal poverty level.
In Lassen County, the largest racial and ethnic groups are White (68.9%), Black or African American (8.3%), Hispanic or Latino (5.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Lassen County, California is 37.8 years. Residents are 37.9% female and 62.1% male.
The median home value in Lassen County is $259,500 and median monthly rent is $1,043. 68.2% of occupied housing units are owner-occupied. The county has 12,232 total housing units, 25.9% of which are vacant.
The largest employment sector in Lassen County, California is public administration, employing 28.0% of workers. The unemployment rate is 3.0%.
Los Angeles is among the largest cities associated with Lassen County, California, with a population of 3,857,897.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.