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The Commemorative Quarter for California

The 2000 Census showed that Lassen County had a population of 33,828 people. This represented 0.1% of the total population of California, making it the state's 47th most populous county (out of 58 counties).

From the Census Estimates for 2009<1>, Lassen had a population of 34,473 people. This is an increase of 1.91% since the 2000 Census.

The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.

Since 2000
Year-to-Year Change
201034,895+3.15%+1.22% since 2009
200934,473+1.91%-0.21% since 2008
200834,547+2.13%-1.31% since 2007
200735,005+3.48%+2.72% since 2006
200634,078+0.74%+0.12% since 2005
200534,037+0.62%-0.19% since 2004
200434,102+0.81%+1.21% since 2003
200333,695-0.39%+1.19% since 2002
200233,300-1.56%-0.61% since 2001
200133,503-0.96%-0.96% since 2000
200033,828The Last Census

Lassen County had 12,000 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Lassen County has a total area<3> of 4,720 square miles [12,225 km²]. Of this total, 4,557 square miles [11,803 km²] of the area is land, with the balance (3.46%) being water (163.1 square miles [422.4 km²]).

Using the above population and land area values, Lassen County had a population density of 7.42 people per square mile [2.87 people/km²], making it the state's 52nd most densely populated county (out of 58 counties).

US Census QuickFacts

The Census Bureau has created documents containing demographic information that are called QuickFacts. A QuickFact that is specific to Lassen County is available. The QuickFact also contains a comparison between Lassen and the state of California.

Click here for the Lassen County QuickFact (QF-06035).

Below are the counties that adjoin and form the boundaries of Lassen County. A link to their specific Census QuickFact has been provided.

(2009 Est.)
(2000 Census)
Change in
ModocQF-06049   N9,1079,449-3.62%
PlumasQF-06063   S20,12220,824-3.37%
ShastaQF-06089   W181,099163,25610.93%
SierraQF-06091   S3,1743,555-10.72%
TehamaQF-06103   SW61,13856,0399.1%
Washoe (NV)QF-32031   SE414,820339,48622.19%

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U.S. Census Bureau
Census QuickFact for Lassen County

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2000 Census and the next count will be for the 2010 Census.

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<2>A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).

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<3>The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Lassen. The value given by the Census Bureau reflects their statistical (or sampling) requirements.

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<4>All Quarter-dollar coin images from the United States Mint.

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