Plumas County, California Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 51st-largest in California
The population of Plumas County, California is 19,607 as of the 2023 American Community Survey, making it the 51st-largest county in California. The median household income is $64,946, the median home value is $327,400, and the median age is 52.1.
The population of Plumas County has declined 5.4% since 2010 (19,915 → 18,834), a -0.40% annualized rate.
19,607
Population
-0.40%
Annual growth
8
People / sq mi
$64,946
Median Income
$327,400
Median Home Value
Plumas County covers 2,553 sq mi of land at 7.7 people per square mile.
About Plumas County, CA
Plumas County is a county in California with a population of 19,607. It ranks #51 among counties in California by population. The median age is 52.1, older than the national median. The population is 51.0% male and 49.0% female.
The median household income in Plumas County is $64,946, below the US median of $74,580. 6.0% of residents live below the federal poverty level. Home values sit at a median of $327,400, with monthly rent averaging $1,034. The homeownership rate of 74.8% is higher than the national rate of 64.8%.
Educational attainment in Plumas County reflects 20.5% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 8.0% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 19.8 minutes each way.
Plumas County Population History (2010-2024)
The county of Plumas County had a population of 19,915 in 2010 and 18,834 in 2024, a -5.4% growth over 14 years. The peak was 19,965 in 2021. Average annual growth rate: -0.38%.
18,834
Population (2024)
19,915
Population (2010)
19,965
Peak (2021)
-0.38%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 19,915 |
| 2011 | 19,720 |
| 2012 | 19,380 |
| 2013 | 18,901 |
| 2014 | 18,631 |
| 2015 | 18,435 |
| 2016 | 18,691 |
| 2017 | 18,680 |
| 2018 | 18,830 |
| 2019 | 19,052 |
| 2020 | 19,761 |
| 2021 | 19,965 |
| 2022 | 19,433 |
| 2023 | 19,120 |
| 2024 | 18,834 |
Race & Ethnicity
| White | 87.1% |
| Black or African American | 1.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 4.9% |
| Two or More Races | 0.0% |
Age & Sex
52.1
Median Age
49.0%
Female
51.0%
Male
29.9%
Age 65+
Age Distribution
Children (under 15): 13.8% · Seniors (65+): 29.9%
Income & Poverty
| Median household income | $64,946$-31,388 vs state |
| Mean household income | $93,296 |
| Per-capita income | $41,604 |
| Poverty rate | 6.0%-2.4% vs state |
| Unemployment rate | 4.6% |
| Employment-to-population | 42.7% |
Top Industries by Employment
The largest employment sector in Plumas County is professional & business services, accounting for 25.4% of workers.
How residents commute
0.2%
Drive alone
3.7%
Carpool
78.3%
Public transit
8.0%
Work from home
19.8 min
Avg commute
Housing
$327,400$-368,000 vs state
Median home value
$1,034
Median rent
74.8%
Homeownership rate
15,037
Total housing units
53.6%
Occupied
46.4%
Vacant
25.2%
Renter-occupied
Social & access
95.0%
With health insurance
93.7%
With broadband internet
26.4%
Foreign-born
11.0%
Veterans (18+)
21.3%
With a disability
94.5%
Speak language other than English at home
Education
94.0%
High School+
20.5%
Bachelor's+
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County rankings
Frequently Asked Questions
Plumas County, California has a population of 19,607 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 51st-largest county in California. Population density is 8 people per square mile.
The population of Plumas County has declined 5.4% since 2010 (19,915 → 18,834), a -0.40% annualized rate.
The median household income in Plumas County, California is $64,946, with mean (average) household income of $93,296 and per-capita income of $41,604. 6.0% of residents live below the federal poverty level.
In Plumas County, the largest racial and ethnic groups are White (87.1%), Hispanic or Latino (4.9%), Black or African American (1.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Plumas County, California is 52.1 years. Residents are 49.0% female and 51.0% male.
The median home value in Plumas County is $327,400 and median monthly rent is $1,034. 74.8% of occupied housing units are owner-occupied. The county has 15,037 total housing units, 46.4% of which are vacant.
The largest employment sector in Plumas County, California is professional, scientific, and management services, employing 25.4% of workers. The unemployment rate is 4.6%.
Los Angeles is among the largest cities associated with Plumas 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.