ZIP Codes in East Saint Louis, IL
East Saint Louis uses 6 ZIP codes, all in St. Clair County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 6 East Saint Louis ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 62201 | standard | St. Clair | 4,921 |
| 62203 | standard | St. Clair | 5,465 |
| 62204 | standard | St. Clair | 4,055 |
| 62205 | standard | St. Clair | 6,459 |
| 62206 | standard | St. Clair | 12,959 |
| 62207 | standard | St. Clair | 6,984 |
Finding a ZIP+4 in East Saint Louis
Knowing which of these 6 ZIP codes covers an address only gets you partway. The four-digit extension identifies the specific delivery point — typically one side of one block. Two houses facing each other on the same East Saint Louis street almost always have different ZIP+4 codes even though they share all five leading digits.
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