O'Fallon, Missouri Population:
Census 2010 and 2000 Interactive Map, Demographics, Statistics, Quick Facts
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| O'Fallon, Missouri - Overview | 2010 Census | 2000 Census | 2000-2010 Change | ||||||
| Counts | Percentages | Counts | Percentages | Change | Percentages | ||||
| Total Population | |||||||||
| Total Population | 79,329 | 100.00% | 46,169 | 100.00% | 33,160 | 71.82% | |||
| Population by Race | |||||||||
| American Indian and Alaska native alone | 197 | 0.25% | 108 | 0.23% | 89 | 82.41% | |||
| Asian alone | 2,499 | 3.15% | 342 | 0.74% | 2,157 | 630.70% | |||
| Black or African American alone | 3,164 | 3.99% | 1,033 | 2.24% | 2,131 | 206.29% | |||
| Native Hawaiian and Other Pacific native alone | 44 | 0.06% | 13 | 0.03% | 31 | 238.46% | |||
| Some other race alone | 658 | 0.83% | 197 | 0.43% | 461 | 234.01% | |||
| Two or more races | 1,452 | 1.83% | 470 | 1.02% | 982 | 208.94% | |||
| White alone | 71,315 | 89.90% | 44,006 | 95.32% | 27,309 | 62.06% | |||
| Population by Hispanic or Latino Origin (of any race) | |||||||||
| Persons of Hispanic or Latino Origin | 2,159 | 2.72% | 671 | 1.45% | 1,488 | 221.76% | |||
| Persons Not of Hispanic or Latino Origin | 77,170 | 97.28% | 45,498 | 98.55% | 31,672 | 69.61% | |||
| Population by Gender | |||||||||
| Male | 38,742 | 48.84% | 22,772 | 49.32% | 15,970 | 70.13% | |||
| Female | 40,587 | 51.16% | 23,397 | 50.68% | 17,190 | 73.47% | |||
| Population by Age | |||||||||
| Persons 0 to 4 years | 6,347 | 8.00% | 4,847 | 10.50% | 1,500 | 30.95% | |||
| Persons 5 to 17 years | 17,447 | 21.99% | 10,565 | 22.88% | 6,882 | 65.14% | |||
| Persons 18 to 64 years | 48,465 | 61.09% | 27,906 | 60.44% | 20,559 | 73.67% | |||
| Persons 65 years and over | 7,070 | 8.91% | 2,851 | 6.18% | 4,219 | 147.98% | |||