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County

NameStatusPopulation
census
2000-04-01
Population
census
2010-04-01
Population
estimate
2013-07-01
 
IllinoisFederal State12,419,92712,830,63212,882,135
St. ClairCounty256,043270,063266,955

Contents: Incorporated Places

Name StatusCountyPopulation
census
2000-04-01
Population
census
2010-04-01
Population
estimate
2013-07-01
 
AlortonVillageSt. Clair2,6642,0341,960
BellevilleCitySt. Clair42,18344,07042,895
BrooklynVillageSt. Clair665749724
CahokiaVillageSt. Clair16,37415,23814,737
CaseyvilleVillageSt. Clair4,3334,2124,116
CentrevilleCitySt. Clair5,9905,3275,141
CollinsvilleCitySt. Clair / Madison24,67325,55825,059
ColumbiaCitySt. Clair / Monroe7,8759,6919,999
DupoVillageSt. Clair3,8434,1304,000
East CarondeletVillageSt. Clair298503489
East St. LouisCitySt. Clair31,66726,91726,598
Fairmont CityVillageSt. Clair / Madison2,4312,6292,542
Fairview HeightsCitySt. Clair14,98117,07816,929
FayettevilleVillageSt. Clair383366350
FreeburgVillageSt. Clair3,9754,3564,303
HeckerVillageSt. Clair / Monroe470486485
LebanonCitySt. Clair3,5584,4574,444
LenzburgVillageSt. Clair578518499
MadisonCitySt. Clair / Madison4,5393,8913,924
MarissaVillageSt. Clair2,1651,9771,897
MascoutahCitySt. Clair5,6797,5097,879
MillstadtVillageSt. Clair2,9213,9863,931
New AthensVillageSt. Clair1,9852,0581,996
New BadenVillageSt. Clair / Clinton2,9603,3493,341
O'FallonCitySt. Clair21,94628,65929,143
SaugetVillageSt. Clair198159155
ShilohVillageSt. Clair8,62512,40912,882
SmithtonVillageSt. Clair2,3743,6853,722
St. LiboryVillageSt. Clair583609601
SummerfieldVillageSt. Clair483432415
SwanseaVillageSt. Clair11,04813,45513,712
Washington ParkVillageSt. Clair5,9324,1964,075

Source: US Census Bureau (web).
2000 population of places in the boundaries of 2010. Later population figures refer to the boundaries of 2013.