O'Fallon city, Missouri demographics
Population: 90,802
Median age: 37.2
Median household income: 96,157
O'Fallon is a city in St. Charles County, Missouri, United States.
Demographics, population, home values, social and economic characteristics of O'Fallon city, MO.
Population
| 2021 | 90,802 |
| 2020 | 88,132 |
| 2019 | 87,242 |
| 2018 | 86,340 |
| 2017 | 85,246 |
| 2016 | 84,018 |
| 2015 | 83,053 |
| 2014 | 81,978 |
| 2013 | 80,617 |
| 2012 | 79,073 |
| 2011 | 77,036 |
| 2010 | 74,777 |
| 2009 | 74,767 |
Census data for O'Fallon city, Missouri
Demographic and housing estimates in O'Fallon city, Missouri
| Total population | 90,802 |
| Male | 44,739 |
| Female | 46,063 |
| Total population | 90,802 |
| Under 5 years | 6,197 |
| 5 to 9 years | 6,353 |
| 10 to 14 years | 6,843 |
| 15 to 19 years | 6,362 |
| 20 to 24 years | 4,441 |
| 25 to 34 years | 12,285 |
| 35 to 44 years | 12,610 |
| 45 to 54 years | 13,128 |
| 55 to 59 years | 6,179 |
| 60 to 64 years | 5,501 |
| 65 to 74 years | 6,445 |
| 75 to 84 years | 3,326 |
| 85 years and over | 1,132 |
| Median age (years) | 37.2 |
| Under 18 years | 23,885 |
| 16 years and over | 69,777 |
| 18 years and over | 66,917 |
| 21 years and over | 64,139 |
| 62 years and over | 13,889 |
| 65 years and over | 10,903 |
| Total population | 90,802 |
| One race | 86,909 |
| White | 78,408 |
| Black or African American | 3,594 |
| American Indian and Alaska Native | 33 |
| Asian | 3,931 |
| Native Hawaiian and Other Pacific Islander | 27 |
| Some other race | 916 |
| Two or more races | 3,893 |
| Citizen, VOTING AGE 18 and over population | 65,213 |
| Male Citizen, VOTING AGE 18 and over population | 31,670 |
| Female Citizen, VOTING AGE 18 and over population | 33,543 |
Social characteristics in O'Fallon city, Missouri
| Total households | 33,163 |
| Family households (families) | 19,850 |
| Married-couple family | 1,874 |
| Male householder, no wife present, family | 4,141 |
| Female householder, no husband present, family | 2,705 |
| Nonfamily households | 7,298 |
| Average household size | 7,949 |
| Average family size | 2.73 |
Economic characteristics in O'Fallon city, Missouri
| Total households | 33,163 |
| Less than $10,000 | 619 |
| $10,000 to $14,999 | 641 |
| $15,000 to $24,999 | 1,356 |
| $25,000 to $34,999 | 1,753 |
| $35,000 to $49,999 | 2,829 |
| $50,000 to $74,999 | 5,362 |
| $75,000 to $99,999 | 4,592 |
| $100,000 to $149,999 | 8,310 |
| $150,000 to $199,999 | 4,296 |
| $200,000 or more | 3,405 |
| Median household income (dollars) | 96,157 |
Housing characteristics in O'Fallon city, Missouri
| Total housing units | 34,061 |
| Occupied housing units | 33,163 |
| Vacant housing units | 898 |
| Total housing units | 34,061 |
| 1-unit, detached | 25,676 |
| 1-unit, attached | 3,196 |
| 2 units | 211 |
| 3 or 4 units | 480 |
| 5 to 9 units | 841 |
| 10 to 19 units | 1,106 |
| 20 or more units | 1,381 |
| Mobile home | 1,159 |
| Boat, RV, van, etc. | 11 |
| Total housing units | 34,061 |
| Built 2014 or later | 261 |
| Built 2010 to 2013 | 4,701 |
| Built 2000 to 2009 | 11,257 |
| Built 1990 to 1999 | 10,976 |
| Built 1980 to 1989 | 3,410 |
| Built 1970 to 1979 | 1,293 |
| Built 1960 to 1969 | 1,152 |
| Built 1950 to 1959 | 620 |
| Built 1940 to 1949 | 139 |
| Built 1939 or earlier | 252 |
| Total housing units | 34,061 |
| 1 room | 406 |
| 2 rooms | 419 |
| 3 rooms | 1,188 |
| 4 rooms | 3,769 |
| 5 rooms | 5,977 |
| 6 rooms | 5,406 |
| 7 rooms | 4,156 |
| 8 rooms | 4,866 |
| 9 rooms or more | 7,874 |
| Median rooms | 6.5 |
| Total housing units | 34,061 |
| No bedroom | 406 |
| 1 bedroom | 1,210 |
| 2 bedrooms | 5,822 |
| 3 bedrooms | 14,555 |
| 4 bedrooms | 10,575 |
| 5 or more bedrooms | 1,493 |
| Occupied housing units | 33,163 |
| Owner-occupied | 27,181 |
| Renter-occupied | 5,982 |
| Average household size of owner-occupied unit | 2.82 |
| Average household size of renter-occupied unit | 2.32 |
| Occupied housing units | 33,163 |
| Moved in 2017 or later | 3,385 |
| Moved in 2015 to 2016 | 9,332 |
| Moved in 2010 to 2014 | 5,821 |
| Moved in 2000 to 2009 | 9,054 |
| Moved in 1990 to 1999 | 4,770 |
| Moved in 1989 and earlier | 801 |
| Owner-occupied units | 27,181 |
| Less than $50,000 | 932 |
| $50,000 to $99,999 | 274 |
| $100,000 to $149,999 | 2,093 |
| $150,000 to $199,999 | 4,662 |
| $200,000 to $299,999 | 11,482 |
| $300,000 to $499,999 | 6,500 |
| $500,000 to $999,999 | 1,147 |
| $1,000,000 or more | 91 |
| Median (dollars) | 246,100 |
| Owner-occupied units | 27,181 |
| Housing units with a mortgage | 21,066 |
| Housing units without a mortgage | 6,115 |
| Occupied units paying rent | 5,612 |
| Less than $500 | 115 |
| $500 to $999 | 1,230 |
| $1,000 to $1,499 | 2,962 |
| $1,500 to $1,999 | 869 |
| $2,000 to $2,499 | 155 |
| $2,500 to $2,999 | 72 |
| $3,000 or more | 209 |
| Median (dollars) | 1,185 |
| No rent paid | 370 |
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