2020 census As of the
2020 census, Severna Park had a population of 39,933. The median age was 42.3 years. 25.5% of residents were under the age of 18 and 18.1% were 65 years of age or older. For every 100 females there were 96.2 males, and for every 100 females age 18 and over there were 93.4 males age 18 and over. There were 13,564 households in Severna Park, of which 40.0% had children under the age of 18 living in them. Of all households, 69.1% were married-couple households, 9.9% were households with a male householder and no spouse or partner present, and 17.4% were households with a female householder and no spouse or partner present. About 15.8% of all households were made up of individuals and 10.1% had someone living alone who was 65 years of age or older. There were 9,731 households, out of which 40.9% had children under the age of 18 living with them, 73.7% were
married couples living together, 6.8% had a female householder with no husband present, and 16.7% were non-families. 13.4% of all households were made up of individuals, and 5.8% had someone living alone who was 65 years of age or older. The average household size was 2.89 and the average family size was 3.17 people. In the CDP, the population was spread out, with 28.1% under the age of 18, 4.9% from 18 to 24, 25.9% from 25 to 44, 29.0% from 45 to 64, and 12.1% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 94.7 males. For every 100 females age 18 and over, there were 91.5 males.
2007 estimate According to a 2007 estimate, the median income for a household in the CDP was $106,983, and the median income for a family was $116,246. Males had a median income of $70,742 versus $45,061 for females. The
per capita income for the CDP was $40,985. About 0.6% of families and 1.2% of the population were below the
poverty line, including 0.4% of those under age 18 and 3.0% of those age 65 or over. ==Local schools==