Sponsored Listings:
Alorton Post Office
4825 Bond Ave
East Saint Louis, Illinois 62207
Belleville Post Office
120 W Washington St
Belleville, Illinois 62220
Cahokia Post Office
801 Range Ln
East Saint Louis, Illinois 62206
Caseyville Post Office
113 S Long St
Caseyville, Illinois 62232
Dupo Post Office
116 Emma Ave
Dupo, Illinois 62239
Dutch Hollow Post Office
5731 Mount Pleasant Ln
Belleville, Illinois 62223
East Carondelet Post Office
824 State St
East Carondelet, Illinois 62240
East Saint Louis Post Office
950 Missouri Ave
East Saint Louis, Illinois 62201
Edgemont Post Office
8701 State St
East Saint Louis, Illinois 62203
Fairview Heights Post Office
10850 Lincoln Trl Unit 20
Fairview Heights, Illinois 62208
Freeburg Post Office
3 S Belleville St
Freeburg, Illinois 62243
Lebanon Post Office
201 E Saint Louis St
Lebanon, Illinois 62254
Lenzburg Post Office
312 N Charles St
Lenzburg, Illinois 62255
Marissa Post Office
114 N Main St
Marissa, Illinois 62257
Mascoutah Post Office
18 W Main St
Mascoutah, Illinois 62258
Millstadt Post Office
20 W White St
Millstadt, Illinois 62260
New Athens Post Office
200 S Benton St
New Athens, Illinois 62264
O Fallon Post Office
1111 S Lincoln Ave
O Fallon, Illinois 62269
Saint Libory Post Office
7340 State Route 15
Saint Libory, Illinois 62282
Scott Air Force Base Post Office
404 W Martin St
Scott Air Force Base, Illinois 62225
Smithton Post Office
512 S Main St
Smithton, Illinois 62285
Summerfield Post Office
101 E Park St
Summerfield, Illinois 62289
St Clair County
There are 22 US Post Offices in St Clair County serving a total of 188,710 residents equating to 8,578 residents per post office. It's estimated that approximately 301,202 packages are handled across the 22 county post offices annually.