Siskiyou County Population 2018

Siskiyou County's estimated population is 43,853 with a growth rate of 0.79% in the past year according to the most recent United States census data. Siskiyou County is the 45th largest county in California.

Year Population Growth Growth Rate
201743,8533420.79%
201643,5111600.37%
201543,351-39-0.09%
201443,390-153-0.35%
201343,543-539-1.22%
201244,082-532-1.19%
201144,614-325-0.72%
201044,9391,4083.23%
199043,5313,7999.56%
198039,7326,50719.58%
197033,2253401.03%
196032,8852,1527.00%
195030,7332,1357.47%
194028,5983,11812.24%
193025,4806,93537.40%
192018,545-256-1.36%
191018,8011,83910.84%
190016,9624,79939.46%
189012,1633,55341.27%
18808,6101,76225.73%
18706,848-781-10.24%
18607,6290.00%

Siskiyou County Population Growth

Population Data via

Siskiyou County Race Data

Race Population Percentage
White37,82886.26%
Two or More Races2,1945.00%
American Indian and Alaska Native2,0944.78%
Black or African American6341.45%
Asian6001.37%
Native Hawaiian and Other Pacific Islander1330.30%

Siskiyou County Population Pyramid

0k1k1k2k2k Male Population0k1k1k2k2k Female Population8580757065605550454035302520151050
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990