Genesee is an unincorporated community and a census-designated place (CDP) located in and governed by Jefferson County, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The population of the Genesee CDP was 3,610 at the United States Census 2020. of 2000, there were 3,699 people, 1,511 households, and 1,199 families residing in the CDP. The population density was . There were 1,562 housing units at an average density of . The racial makeup of the CDP was 95.94% White, 0.22% African American, 0.35% Native American, 1.78% Asian, 0.08% Pacific Islander, 0.76% from other races, and 0.87% from two or more races. Hispanic or Latino of any race were 2.73% of the population.
There were 1,511 households, out of which 30.1% had children under the age of 18 living with them, 73.9% were married couples living together, 3.6% had a female householder with no husband present, and 20.6% were non-families. 16.2% of all households were made up of individuals, and 1.6% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 2.73.
In the CDP, the population was spread out, with 21.8% under the age of 18, 2.9% from 18 to 24, 25.4% from 25 to 44, 42.2% from 45 to 64, and 7.8% who were 65 years of age or older. The median age was 45 years. For every 100 females, there were 102.4 males. For every 100 females age 18 and over, there were 101.4 males.
The median income for a household in the CDP was $132,077, and the median income for a family was $138,983. The per capita income for the CDP was $79,180. About 1.3% of families and 1.6% of the population were below the poverty line, including 2.6% of those under age 18 and none of those age 65 or over.
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The United States Census Bureau initially defined the for the
2020 census
As of the 2020 census, Genesee had a population of 3,610. The median age was 54.2 years. 17.1% of residents were under the age of 18 and 29.7% of residents were 65 years of age or older. For every 100 females there were 100.8 males, and for every 100 females age 18 and over there were 100.5 males age 18 and over.
0.0% of residents lived in urban areas, while 100.0% lived in rural areas.
There were 1,532 households in Genesee, of which 22.7% had children under the age of 18 living in them. Of all households, 67.8% were married-couple households, 14.2% were households with a male householder and no spouse or partner present, and 14.2% were households with a female householder and no spouse or partner present. About 20.8% of all households were made up of individuals and 11.4% had someone living alone who was 65 years of age or older.