County · California

Lassen County, California

Lassen County, California. Lassen County had 28,117 residents in 2025 by the Census Bureau's estimate, down 14.1% since 2020, a steeper fall than California's (−0.5%). It holds 16 places (1 city, village or borough and 15 census-designated) and 9 census tracts. GEOID 06035.

Lassen County is the county of the Susanville, CA micropolitan statistical area (the Census Bureau's July 2023 delineation).

Residents, July 2025 estimate

28,117

Census Bureau estimate (no margin published)
2020 Census count: 32,730 · ACS 2020-2024: 30,356

Median household income

$67,403

±$3,407 (90% margin)
California: $99,122

Median home value

$265,300

±$12,020 (90% margin)
California: $734,700

Median gross rent

$1,000

±$100 (90% margin)
California: $2,036

How many people live in Lassen County, and is it growing?

The 2020 Census counted 32,730 residents in Lassen County. The Census Bureau estimates 28,117 for July 1, 2025, down 14.1% since 2020, a steeper fall than California's (−0.5%). The 2020-2024 American Community Survey puts the population at 30,356 over 4,541 square miles of land.

July 2020→2021 −406 (31,943)
2021→2022 −1,674 (30,269)
2022→2023 −1,575 (28,694)
2023→2024 −101 (28,593)
2024→2025 −476 (28,117)

Lassen County in California. Boundaries: Census Bureau 2024.

Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
Measure	Lassen County	California	Change since 2015-2019
Total population	30,356	39,287,377	−462
Households	9,247±313	13,548,091	no clear change
Average household size	2.57±0.08	2.84	+0.31
Housing units	12,231±84	14,644,735	−552

Lassen County's population since 2000

From 33,828 in 2000 to 28,117 in 2025: down 16.9%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.

2000 Census 33,828
2005 (estimate) 34,488
2010 Census 34,895
2015 (estimate) 31,256
2020 Census 32,730
2025 (estimate) 28,117

Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov

What cities and towns are in Lassen County?

Lassen County holds 16 places: 1 city, village or borough (an incorporated place) and 15 census-designated places. The largest is Susanville with 12,816 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.

Places in Lassen County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.

Susanville	city	16,728	14,177±33	$61,641	$235,500	17.6%	100%
Janesville	CDP	2,461	2,399±380	$78,466	$326,900	7.5%	100%
Westwood	CDP	1,541	1,063±411	$59,375	$147,000	21.7%	100%
Johnstonville	CDP	973	1,039±314	$100,132	$329,300	15.9%	100%
Patton VillageGEOID 0656140	CDP	632	473±296	$100,972	$73,900	23.3%	100%
DoyleGEOID 0619878	CDP	536	779±385	$44,881	$232,400	25.3%	100%
BieberGEOID 0606336	CDP	266	266±151	not published	$142,600	7.1%	100%
HerlongGEOID 0633336	CDP	237	211±76	$56,875	not published	19.9%	100%
SpauldingGEOID 0673554	CDP	206	369±169	$24,620	not published	40.1%	100%
Clear CreekGEOID 0613910	CDP	175	172±109	$51,278	$230,800	2.3%	100%
LitchfieldGEOID 0641782	CDP	160	65±77	not published	not published	27.7%	100%
MilfordGEOID 0647472	CDP	147	0±14	not published	not published	–	100%
Stones LandingGEOID 0675122	CDP	86	85±72	not published	$205,000	0.0%	100%
Little ValleyGEOID 0641908	CDP	84	60±73	$39,306	not published	21.7%	100%
MadelineGEOID 0645008	CDP	21	0±14	not published	not published	–	100%
NubieberGEOID 0652610	CDP	19	7±11	not published	not published	100.0%	100%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov

Who lives in Lassen County?

The median resident of Lassen County is 38.3 years old; 18.5% are under 18 and 16.5% are 65 or older. The largest group is non-Hispanic white residents at 61.3%, then Hispanic or Latino residents (of any race) at 22.6%. 7.0% of residents were born outside the United States.

Age, origin and education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
Measure	Lassen County	California	Change since 2015-2019
Median age	38.3±1.0	37.9	+1.7
Under 18 years	18.5%±0.2 pts	22.0%	–
65 years and over	16.5%±0.4 pts	15.7%	–
Hispanic or Latino (any race)	22.6%	40.2%	+3.6 pts
White alone, not Hispanic	61.3%±0.4 pts	33.8%	−4.1 pts
Black or African American alone, not Hispanic	6.1%±0.7 pts	5.2%	−2.4 pts
Asian alone, not Hispanic	2.0%±0.2 pts	15.3%	+0.6 pts
American Indian and Alaska Native alone, not Hispanic	2.6%±0.8 pts	0.3%	–
Native Hawaiian and Other Pacific Islander alone, not Hispanic	1.0%±0.1 pts	0.3%	–
Two or more races, not Hispanic	4.2%±1.0 pts	4.4%	–
Some other race alone, not Hispanic	0.3%±0.2 pts	0.6%	–
Born outside the United States	7.0%±1.0 pts	27.0%	+1.4 pts
Speak a language other than English at home (age 5+)	18.2%±1.2 pts	44.4%	–
Civilian veterans (age 18+)	7.4%±1.2 pts	4.3%	–
With a disability	18.0%±1.5 pts	11.6%	–
No health insurance coverage	6.4%±1.3 pts	6.6%	+2.0 pts
High school graduate or higher (age 25+)	77.0%±1.6 pts	84.7%	–
Bachelor's degree or higher (age 25+)	13.1%±1.4 pts	37.1%	no clear change
Graduate or professional degree (age 25+)	3.0%±0.7 pts	14.4%	–
Moved from another state in the past year	1.3%±0.6 pts	1.1%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Lassen County earn?

Half of Lassen County's 9,247 households earn less than $67,403 a year (±$3,407), against $99,122 in California. In 2015-2019 it was $69,352 in 2024 dollars; the margins of error cannot tell the two periods apart. 14.0% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure	Lassen County	California	Change since 2015-2019
Median household income	$67,403±$3,407	$99,122	no clear change
Mean household income	$81,033±$3,760	$140,436	–
Per capita income	$26,634±$1,287	$49,513	no clear change
People below the poverty line	14.0%±2.2 pts	12.0%	no clear change
Children under 18 below the poverty line	17.5%±4.7 pts	15.0%	no clear change
Households receiving SNAP	13.4%±2.4 pts	12.4%	–
Households with a broadband subscription	88.7%±2.4 pts	93.5%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Lassen County?

Owners occupy 68.2% of Lassen County's occupied homes and renters 31.8%. The median owner-occupied home is valued at $265,300 by its owner (±$12,020). The median renter pays $1,000 a month including utilities, and 36.9% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
Measure	Lassen County	California	Change since 2015-2019
Median home value (owner-occupied)	$265,300±$12,020	$734,700	no clear change
Median gross rent	$1,000±$100	$2,036	−$177
Renters paying 35% or more of income on rent	36.9%±6.8 pts	46.0%	no clear change
Median monthly owner costs, with a mortgage	$1,756±$75	$2,946	–
Owner-occupied homes	68.2%±3.5 pts	55.9%	no clear change
Housing units	12,231±84	14,644,735	−552
Homeowner vacancy rate	2.7%±1.7 pts	0.8%	–
Rental vacancy rate	4.5%±4.3 pts	4.2%	–
Single-family detached homes	74.5%±2.4 pts	57.0%	–
Mobile homes	12.6%±2.0 pts	3.5%	–
Built 2020 or later	0.8%±0.5 pts	1.3%	–
Built 1939 or earlier	14.4%±2.1 pts	8.9%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How many new homes is Lassen County building?

Builders took permits for 17 new housing units across Lassen County in 2025 (9 single-family), 0.6 per 1,000 residents.

2019 12 units
2020 21 units
2021 11 units
2022 14 units
2023 17 units
2024 6 units
2025 17 units

Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey

How do people in Lassen County get to work?

74.2% of Lassen County's workers drive alone and 7.0% work from home. The average trip to work takes 19.5 minutes. The unemployment rate in 2020-2024 averaged 8.3%.

Work and commuting, ACS 2020-2024 5-year estimates
Measure	Lassen County	California	Change since 2015-2019
In the labor force (age 16+)	41.3%±1.8 pts	63.8%	–
Unemployment rate	8.3%±2.2 pts	6.6%	no clear change
Drove alone to work	74.2%±4.1 pts	65.7%	–
Carpooled	13.2%±3.5 pts	9.5%	–
Public transportation	0.3%±0.4 pts	2.9%	–
Walked	1.7%±0.7 pts	2.4%	–
Worked from home	7.0%±1.5 pts	17.2%	no clear change
Mean travel time to work	19.5 min±1.8	28.7 min	no clear change

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What are Lassen County's census tracts?

Lassen County is divided into 9 census tracts. Among those with a reliable estimate, median household income runs from $43,239 (Tract 401) to $91,979 (Tract 403.02).

Census tracts of Lassen County, ACS 2020-2024 5-year estimates; sort by any column

Tract 40106035040100	Bieber (3%)	1,627	1,289±271	$43,239	$194,800	$708	12.1%
Tract 40206035040200	Westwood (14%)	2,459	2,481±445	$65,795	$211,000	$937	16.2%
Tract 403.0206035040302	Johnstonville (20%)	4,343	4,660±487	$91,979	$311,000	$1,373	6.4%
Tract 403.0306035040303	Susanville (79%)	3,204	3,386±445	$44,514	$196,400	$977	18.1%
Tract 403.0406035040304	Susanville (94%)	1,804	1,908±306	$53,542	$208,200	$682	29.0%
Tract 403.0506035040305	Susanville (71%)	4,169	3,989±442	$83,621	$259,500	$901	14.2%
Tract 40406035040400	Litchfield (16%)	8,786	6,093±418	$90,655	$366,000	$1,168	8.7%
Tract 40506035040500	Janesville (51%)	3,045	2,910±374	$80,536	$340,800	$1,374	6.2%
Tract 40606035040600	Doyle (12%)	3,293	3,640±352	$46,659	$250,200	$1,008	22.3%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov

How does Lassen County compare with California's other counties?

Lassen County's rank among California's counties with a reliable estimate (1 = highest)
Measure	Rank
Population	47th of 58
Growth 2020-2025	58th of 58
Residents per square mile	51st of 58
Median household income	46th of 58
Median home value	57th of 58
Median gross rent	55th of 56
Poverty rate	21st of 57
Bachelor's degree or higher	58th of 58
Median age	34th of 58

Every county in California

Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections

Not on this page: crime, weather and schools for Lassen County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.