Racial and ethnic composition 2020 census As of the
2020 census, Crestwood had a population of 10,826 people. The population density was . The median age was 48.5 years. 15.1% of residents were under the age of 18 and 24.7% of residents were 65 years of age or older. For every 100 females there were 87.9 males, and for every 100 females age 18 and over there were 84.2 males age 18 and over. 100.0% of residents lived in urban areas, while 0.0% lived in rural areas. There were 4,931 households in Crestwood, including 2,281 families. Of all households, 19.6% had children under the age of 18 living in them, 34.7% were married-couple households, 21.8% were households with a male householder and no spouse or partner present, and 37.6% were households with a female householder and no spouse or partner present. About 41.1% of all households were made up of individuals and 18.1% had someone living alone who was 65 years of age or older. There were 5,202 housing units at an average density of . Of the housing units, 5.2% were vacant. The homeowner vacancy rate was 1.3% and the rental vacancy rate was 7.8%.
Income and poverty The median income for a household in the village was $60,541, and the median income for a family was $69,965. Males had a median income of $55,303 versus $31,707 for females. The
per capita income for the village was $30,003. About 3.1% of families and 11.0% of the population were below the
poverty line, including 9.4% of those under age 18 and 16.8% of those age 65 or over. ==Government and politics==