Racial and ethnic composition 2020 census As of the
2020 census, Bonita Springs had a population of 53,644. The median age was 61.9 years. 11.7% of residents were under the age of 18 and 44.2% of residents were 65 years of age or older. For every 100 females there were 96.7 males, and for every 100 females age 18 and over there were 95.4 males age 18 and over. 99.6% of residents lived in urban areas, while 0.4% lived in rural areas. There were 24,894 households in Bonita Springs, of which 13.4% had children under the age of 18 living in them. Of all households, 57.0% were married-couple households, 15.0% were households with a male householder and no spouse or partner present, and 22.3% were households with a female householder and no spouse or partner present. About 26.9% of all households were made up of individuals and 17.4% had someone living alone who was 65 years of age or older.
2010 census As of the
2010 United States census, there were 43,914 people, 19,137 households, and 12,917 families residing in the city.
2000 census The 2009 estimated median income for a household in the city was $53,452, and the median income for a family was $53,436. Males had a median income of $31,227 versus $25,358 for females. The
per capita income for the city was $37,958. About 6.2% of families and 10% of the population were below the
poverty line, including 20.2% of those under age 18 and 5.2% of those aged 65 or over. In 2009, 16.7% of households had children under the age of 18 living with them, 61.2% were married couples living together, 4.1% had a female householder with no husband present, and 32.5% were non-families. 27.1% of all households were made up of individuals, and 11.6% had someone living alone who was 65 years of age or older. The average household size was 2.15 and the average family size was 2.55. As of 2000, the
population density was 929.4 inhabitants per square mile (358.8/km). There were 31,716 housing units at an average density of . In 2000, 13.9% of residents were under the age of 18, 5.9% from 18 to 24, 19.8% from 25 to 44, 28.8% from 45 to 64, and 31.7% were 65 years of age or older. The median age was 54 years. For every 100 females, there were 104.6 males. For every 100 females aged 18 and over, there were 103.9 males. ==Arts and culture==