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O'Fallon

in St. Clair (Illinois)

Contents: City

The population development of O'Fallon as well as related information and services (weather, Wikipedia, Google, images).

Name CountyPopulation
Census
1990-04-01
Population
Census
2000-04-01
Population
Census
2010-04-01
Population
Census
2020-04-01
Population
Estimate
2022-07-01
 
O'FallonSt. Clair16,51821,94628,76732,32532,140

Source: U.S. Census Bureau (web).

Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.


Further information about the population structure:

Gender (C 2020)
Males15,625
Females16,664
Age Groups (C 2020)
0-17 years8,437
18-64 years19,309
65+ years4,543
Age Distribution (C 2020)
80+ years925
70-79 years2,017
60-69 years3,484
50-59 years4,230
40-49 years4,462
30-39 years4,510
20-29 years3,445
10-19 years4,828
0-9 years4,388
Urbanization (C 2020)
Rural144
Urban32,145
»Race« (C 2020)
White22,792
Black/African American5,288
Indigenous72
Asian887
Pacific Islander32
Some other466
2 or more2,752
Ethnicity (C 2020)
Hispanic or Latino1,629
Other30,660

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