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County

NameStatusPopulation
census
2000-04-01
Population
census
2010-04-01
Population
estimate
2012-07-01
 
St. ClairCounty256,043270,056268,858
IllinoisFederal State12,419,92712,830,63212,875,255

Contents: Incorporated Places

Name StatusCountyPopulation
census
2000-04-01
Population
census
2010-04-01
Population
estimate
2012-07-01
 
AlortonVillageSt. Clair2,6642,0021,964
BellevilleCitySt. Clair42,18344,49043,765
BrooklynVillageSt. Clair665749737
CahokiaVillageSt. Clair16,37415,24114,920
CaseyvilleVillageSt. Clair4,3334,2484,219
CentrevilleCitySt. Clair5,9905,3095,194
CollinsvilleCitySt. Clair / Madison24,67325,57625,240
ColumbiaCitySt. Clair / Monroe7,8759,6829,896
DupoVillageSt. Clair3,8434,1424,066
East CarondeletVillageSt. Clair298499486
East St. LouisCitySt. Clair31,66727,00626,708
Fairmont CityVillageSt. Clair / Madison2,4312,6352,588
Fairview HeightsCitySt. Clair14,98117,07816,996
FayettevilleVillageSt. Clair383366358
FreeburgVillageSt. Clair3,9754,3574,362
HeckerVillageSt. Clair / Monroe470481480
LebanonCitySt. Clair3,5584,4704,466
LenzburgVillageSt. Clair578521511
MadisonCitySt. Clair / Madison4,5393,8913,947
MarissaVillageSt. Clair2,1651,9811,936
MascoutahCitySt. Clair5,6797,4837,853
MillstadtVillageSt. Clair2,9214,0113,976
New AthensVillageSt. Clair1,9852,0542,013
New BadenVillageSt. Clair / Clinton2,9603,3493,361
O'FallonCitySt. Clair21,94628,57529,193
SaugetVillageSt. Clair198159156
ShilohVillageSt. Clair8,62512,75513,107
SmithtonVillageSt. Clair2,3743,6933,743
St. LiboryVillageSt. Clair583615610
SummerfieldVillageSt. Clair483451439
SwanseaVillageSt. Clair11,04813,43013,758
Washington ParkVillageSt. Clair5,9324,1964,119

Source: US Census Bureau (web).
2000 population of places in the boundaries of 2010. Later population figures for places in the boundaries of 2012.