St. Clair County
Illinois
29 communities — click any to visit that community page
Belleville
Pop. 41,370
Brooklyn
Pop. 729
Cahokia Heights
Pop. 17,106
Caseyville
Pop. 4,130
Darmstadt
Pop. 18
Dupo
Pop. 3,879
East Carondelet
Pop. 233
East St. Louis
Pop. 17,999
Fairmont City
Pop. 2,492
Fairview Heights
Pop. 16,745
Fayetteville
Pop. 357
Floraville
Freeburg
Pop. 4,592
Lebanon
Pop. 4,474
Lenzburg
Pop. 428
Marissa
Pop. 1,232
Mascoutah
Pop. 8,816
Millstadt
Pop. 4,008
New Athens
Pop. 1,933
O'Fallon
Pop. 32,262
Paderborn
Pop. 20
Rentchler
Sauget
Pop. 307
Shiloh
Pop. 14,572
Smithton
Pop. 3,680
St. Libory
Pop. 559
Summerfield
Pop. 248
Swansea
Pop. 14,710
Washington Park
Pop. 1,701