Clearlake Oaks is a census-designated place (CDP) in Lake County, California, United States. The name Stubbs honored Charles Stubbs, a local landowner.<br>1850–1870 1880-1890<br> 1900 1910 1920<br> 1930 1940 1950<br> 1960 1970 1980<br> 1990
2000 2010
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2020 census
As of the 2020 census, Clearlake Oaks had a population of 2,551. The population density was . The median age was 56.6 years. The age distribution was 12.3% under the age of 18, 4.5% aged 18 to 24, 19.2% aged 25 to 44, 30.3% aged 45 to 64, and 33.7% who were 65 years of age or older. For every 100 females, there were 107.7 males, and for every 100 females age 18 and over, there were 104.9 males age 18 and over.
96.4% of residents lived in urban areas, while 3.6% lived in rural areas.
The Census reported that all 2,551 people (100% of the population) lived in households. There were 1,272 households, out of which 15.3% had children under the age of 18. Of all households, 33.0% were married-couple households, 30.6% were households with a male householder and no spouse or partner present, and 27.6% were households with a female householder and no spouse or partner present. About 41.1% of all households were made up of individuals, and 21.4% had someone living alone who was 65 years of age or older. The average household size was 2.01. There were 632 families (49.7% of all households).
2010 census
The 2010 United States census reported that Clearlake Oaks had a population of 2,359. The population density was . The racial makeup of Clearlake Oaks was 2,054 (87.1%) White, 54 (2.3%) African American, 45 (1.9%) Native American, 34 (1.4%) Asian, 1 (0.0%) Pacific Islander, 60 (2.5%) from other races, and 111 (4.7%) from two or more races. Hispanic or Latino of any race were 192 persons (8.1%).
The Census reported that 2,359 people (100% of the population) lived in households, 0 (0%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized.
There were 1,178 households, out of which 183 (15.5%) had children under the age of 18 living in them, 429 (36.4%) were opposite-sex married couples living together, 132 (11.2%) had a female householder with no husband present, 67 (5.7%) had a male householder with no wife present. There were 91 (7.7%) unmarried opposite-sex partnerships, and 18 (1.5%) same-sex married couples or partnerships. 442 households (37.5%) were made up of individuals, and 249 (21.1%) had someone living alone who was 65 years of age or older. The average household size was 2.00. There were 628 families (53.3% of all households); the average family size was 2.57.
The population was spread out, with 323 people (13.7%) under the age of 18, 120 people (5.1%) aged 18 to 24, 350 people (14.8%) aged 25 to 44, 828 people (35.1%) aged 45 to 64, and 738 people (31.3%) who were 65 years of age or older. The median age was 54.9 years. For every 100 females, there were 98.9 males. For every 100 females age 18 and over, there were 97.7 males.
There were 1,823 housing units at an average density of , of which 823 (69.9%) were owner-occupied, and 355 (30.1%) were occupied by renters. The homeowner vacancy rate was 5.9%; the rental vacancy rate was 9.8%. 1,535 people (65.1% of the population) lived in owner-occupied housing units and 824 people (34.9%) lived in rental housing units.
Government
In the California State Legislature, Clearlake Oaks is in , and in .
Federally, Clearlake Oaks is in .