Townapedia

St. Clair County, Illinois

15 town guides · county population 253,694.

St. Clair County has 27 Census places. The biggest are Belleville (41,370), O'Fallon (32,262), East St. Louis (17,999), Fairview Heights (16,745) and Swansea (14,710). 15 have a town guide so far; the others get one once there is enough real information about them.

Belleville · pop. 41,370 O'Fallon · pop. 32,262 East St. Louis · pop. 17,999 Fairview Heights · pop. 16,745 Swansea · pop. 14,710 Shiloh · pop. 14,572 Mascoutah · pop. 8,816 Freeburg · pop. 4,592 Lebanon · pop. 4,474 Caseyville · pop. 4,130 Millstadt · pop. 4,008 Scott AFB · pop. 3,957
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New Athens · pop. 1,933 Washington Park · pop. 1,701 Marissa · pop. 1,232
Places without a guide yet (12)

These get a page once there is enough real information about them.

  • Smithton 3,680
  • Brooklyn 729
  • St. Libory 559
  • Lenzburg 428
  • Fayetteville 357
  • Sauget 307
  • Summerfield 248
  • East Carondelet 233
  • Paderborn 20
  • Darmstadt 18
  • Floraville
  • Rentchler