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Time Zone: Siskiyou County lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time.

The community of Yreka is the Seat for Siskiyou County.

Siskiyou County was founded in 1852 and was created by taking area from ShastaCounty.

From the Census Estimates for 2009, <1> Siskiyou had a population of 44,634 people. This is an increase of 0.75% since the last Census (which gave a population of 44,301 people in 2000).

At the time of the 2000 Census, Siskiyou represented 0.13% of the total population of California, making it the state's 44th most populous county (out of 58 counties).

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

YearPopulationChange
Since 2000
Year-to-Year Change
201044,900+1.35%+0.6% since 2009
200944,634+0.75%+0.22% since 2008
200844,535+0.53%+0.71% since 2007
200744,222-0.18% 
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200044,301The Last Census

More information can be found on the Siskiyou County Census Page for Siskiyou County.

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Below are some of the communities located in Siskiyou County (for more communities, please visit our Nearby Page for Siskiyou County):

Community 2009
Population
2000
Population
Change
(2009vs. 2000)
Yreka   7,3437,2900.73% increase  
Mount Shasta   3,5173,6212.87% decrease  
Weed   3,0202,9781.41% increase  
Dunsmuir   1,7921,9236.81% decrease  
Montague   1,4551,456  

Websites for Siskiyou County

Official Website:   www.co.siskiyou.ca.us/

If you know of a history or genealogy society whose interest includes Siskiyou County, would you please send us the URL for their website? We would like to add their link to our Gazetteer. To contact us, please visit our Feedback Page.

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

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