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ZIP codes in St. Clair County, Illinois

St. Clair County, Illinois has 30 ZIP codes in this list, from 62059 to 62289. They cover 20 places, among them East Saint Louis, Belleville, Lovejoy and National Stock Yards.

ZIP codePlaceLand area (sq mi)Map point
62059Lovejoy0.738.440, -89.984
62071National Stock Yardsno area38.652, -90.164
62201East Saint Louis12.038.643, -90.139
62202East Saint Louisno area38.616, -90.159
62203East Saint Louis5.638.599, -90.074
62204East Saint Louis4.638.631, -90.095
62205East Saint Louis6.438.615, -90.127
62206East Saint Louis14.538.551, -90.154
62207East Saint Louis6.238.587, -90.128
62208Fairview Heights13.438.596, -90.007
62220Belleville28.938.513, -89.985
62221Belleville35.038.540, -89.958
62222Bellevilleno area38.440, -89.984
62223Belleville25.738.546, -90.038
62225Scott Air Force Base5.238.543, -89.859
62226Belleville13.938.535, -90.001
62232Caseyville12.838.635, -90.013
62239Dupo8.538.516, -90.210
62240East Carondelet14.938.535, -90.221
62243Freeburg51.738.408, -89.918
62254Lebanon40.938.605, -89.799
62255Lenzburg26.538.295, -89.792
62257Marissa80.438.245, -89.750
62258Mascoutah75.438.474, -89.788
62260Millstadt43.938.444, -90.089
62264New Athens65.638.316, -89.873
62269O Fallon29.838.572, -89.896
62282Saint Libory1.938.363, -89.714
62285Smithton16.238.423, -89.990
62289Summerfield1.538.597, -89.751

The ZIP code areas of St. Clair County add up to about 642 square miles of land (1,663 sq km) as the Census Bureau draws them. The largest is 62257 (Marissa), with 80.4 square miles.

Places with more than one code here: East Saint Louis (7 codes), Belleville (5 codes).

Using these codes

Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.

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