St. Clair County, Illinois — ZIP directory
22 ZIP codes in St. Clair County. Pick a ZIP for services, power context, permits, and FAQs written for homeowners.
- East Saint Louis 62201 — East Saint Louis
- East Saint Louis 62203 — East Saint Louis
- East Saint Louis 62204 — East Saint Louis
- East Saint Louis 62205 — East Saint Louis
- East Saint Louis 62206 — East Saint Louis
- East Saint Louis 62207 — East Saint Louis
- Fairview Heights 62208 — Fairview Heights
- Belleville 62220 — Belleville
- Belleville 62221 — Belleville
- Belleville 62223 — Belleville
- Scott Air Force Base 62225 — Scott Air Force Base
- Belleville 62226 — Belleville
- Caseyville 62232 — Caseyville
- Dupo 62239 — Dupo
- Freeburg 62243 — Freeburg
- Lebanon 62254 — Lebanon
- Marissa 62257 — Marissa
- Mascoutah 62258 — Mascoutah
- Millstadt 62260 — Millstadt
- New Athens 62264 — New Athens
- O Fallon 62269 — O Fallon
- Smithton 62285 — Smithton