Affton CDP, Missouri demographics
Population: 18,925
Median age: 42.5
Median household income: 70,330
Affton is a CDP in St. Louis County, Missouri, United States.
Demographics, population, home values, social and economic characteristics of Affton CDP, MO.
Population
| 2021 | 18,925 |
| 2020 | 19,580 |
| 2019 | 20,148 |
| 2018 | 20,187 |
| 2017 | 21,704 |
| 2016 | 22,060 |
| 2015 | 21,345 |
| 2014 | 21,358 |
| 2013 | 21,359 |
| 2012 | 19,945 |
| 2011 | 20,096 |
| 2010 | 20,115 |
| 2009 | 20,709 |
Census data for Affton CDP, Missouri
Demographic and housing estimates in Affton CDP, Missouri
| Total population | 18,925 |
| Male | 9,655 |
| Female | 9,270 |
| Total population | 18,925 |
| Under 5 years | 925 |
| 5 to 9 years | 1,133 |
| 10 to 14 years | 699 |
| 15 to 19 years | 742 |
| 20 to 24 years | 1,314 |
| 25 to 34 years | 2,737 |
| 35 to 44 years | 2,737 |
| 45 to 54 years | 2,291 |
| 55 to 59 years | 1,373 |
| 60 to 64 years | 1,440 |
| 65 to 74 years | 1,981 |
| 75 to 84 years | 884 |
| 85 years and over | 669 |
| Median age (years) | 42.5 |
| Under 18 years | 3,223 |
| 16 years and over | 16,076 |
| 18 years and over | 15,702 |
| 21 years and over | 15,240 |
| 62 years and over | 4,373 |
| 65 years and over | 3,534 |
| Total population | 18,925 |
| One race | 18,084 |
| White | 16,846 |
| Black or African American | 569 |
| American Indian and Alaska Native | 14 |
| Asian | 433 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 222 |
| Two or more races | 841 |
| Citizen, VOTING AGE 18 and over population | 15,238 |
| Male Citizen, VOTING AGE 18 and over population | 7,515 |
| Female Citizen, VOTING AGE 18 and over population | 7,723 |
Social characteristics in Affton CDP, Missouri
| Total households | 8,612 |
| Family households (families) | 3,805 |
| Married-couple family | 659 |
| Male householder, no wife present, family | 1,896 |
| Female householder, no husband present, family | 1,413 |
| Nonfamily households | 2,252 |
| Average household size | 2,685 |
| Average family size | 2.20 |
Economic characteristics in Affton CDP, Missouri
| Total households | 8,612 |
| Less than $10,000 | 300 |
| $10,000 to $14,999 | 356 |
| $15,000 to $24,999 | 633 |
| $25,000 to $34,999 | 456 |
| $35,000 to $49,999 | 1,169 |
| $50,000 to $74,999 | 1,671 |
| $75,000 to $99,999 | 1,455 |
| $100,000 to $149,999 | 1,806 |
| $150,000 to $199,999 | 477 |
| $200,000 or more | 289 |
| Median household income (dollars) | 70,330 |
Housing characteristics in Affton CDP, Missouri
| Total housing units | 9,021 |
| Occupied housing units | 8,612 |
| Vacant housing units | 409 |
| Total housing units | 9,021 |
| 1-unit, detached | 7,323 |
| 1-unit, attached | 169 |
| 2 units | 212 |
| 3 or 4 units | 522 |
| 5 to 9 units | 343 |
| 10 to 19 units | 123 |
| 20 or more units | 304 |
| Mobile home | 25 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 9,021 |
| Built 2014 or later | 12 |
| Built 2010 to 2013 | 145 |
| Built 2000 to 2009 | 305 |
| Built 1990 to 1999 | 689 |
| Built 1980 to 1989 | 399 |
| Built 1970 to 1979 | 797 |
| Built 1960 to 1969 | 1,751 |
| Built 1950 to 1959 | 2,694 |
| Built 1940 to 1949 | 1,422 |
| Built 1939 or earlier | 807 |
| Total housing units | 9,021 |
| 1 room | 112 |
| 2 rooms | 177 |
| 3 rooms | 636 |
| 4 rooms | 1,436 |
| 5 rooms | 2,601 |
| 6 rooms | 1,968 |
| 7 rooms | 1,026 |
| 8 rooms | 558 |
| 9 rooms or more | 507 |
| Median rooms | 5.3 |
| Total housing units | 9,021 |
| No bedroom | 121 |
| 1 bedroom | 795 |
| 2 bedrooms | 3,587 |
| 3 bedrooms | 3,706 |
| 4 bedrooms | 764 |
| 5 or more bedrooms | 48 |
| Occupied housing units | 8,612 |
| Owner-occupied | 6,537 |
| Renter-occupied | 2,075 |
| Average household size of owner-occupied unit | 2.33 |
| Average household size of renter-occupied unit | 1.77 |
| Occupied housing units | 8,612 |
| Moved in 2017 or later | 676 |
| Moved in 2015 to 2016 | 2,094 |
| Moved in 2010 to 2014 | 1,493 |
| Moved in 2000 to 2009 | 2,067 |
| Moved in 1990 to 1999 | 912 |
| Moved in 1989 and earlier | 1,370 |
| Owner-occupied units | 6,537 |
| Less than $50,000 | 130 |
| $50,000 to $99,999 | 308 |
| $100,000 to $149,999 | 1,853 |
| $150,000 to $199,999 | 2,835 |
| $200,000 to $299,999 | 991 |
| $300,000 to $499,999 | 400 |
| $500,000 to $999,999 | 20 |
| $1,000,000 or more | 0 |
| Median (dollars) | 164,500 |
| Owner-occupied units | 6,537 |
| Housing units with a mortgage | 3,999 |
| Housing units without a mortgage | 2,538 |
| Occupied units paying rent | 1,924 |
| Less than $500 | 57 |
| $500 to $999 | 1,193 |
| $1,000 to $1,499 | 561 |
| $1,500 to $1,999 | 72 |
| $2,000 to $2,499 | 12 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 29 |
| Median (dollars) | 889 |
| No rent paid | 151 |
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