ZIP Codes in Saint Louis, MO
Saint Louis uses 46 ZIP codes, all in St. Louis County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 46 Saint Louis ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 63101 | standard | St. Louis | 3,130 |
| 63102 | standard | St. Louis | 2,882 |
| 63103 | standard | St. Louis | 8,778 |
| 63104 | standard | St. Louis | 19,007 |
| 63105 | standard | St. Louis | 18,875 |
| 63106 | standard | St. Louis | 6,751 |
| 63107 | standard | St. Louis | 8,909 |
| 63108 | standard | St. Louis | 21,336 |
| 63109 | standard | St. Louis | 25,236 |
| 63110 | standard | St. Louis | 17,645 |
| 63111 | standard | St. Louis | 18,851 |
| 63112 | standard | St. Louis | 17,985 |
| 63113 | standard | St. Louis | 10,221 |
| 63114 | standard | St. Louis | 33,969 |
| 63115 | standard | St. Louis | 14,488 |
| 63116 | standard | St. Louis | 42,170 |
| 63117 | standard | St. Louis | 9,261 |
| 63118 | standard | St. Louis | 25,913 |
| 63119 | standard | St. Louis | 34,181 |
| 63120 | standard | St. Louis | 6,790 |
| 63121 | standard | St. Louis | 25,008 |
| 63122 | standard | St. Louis | 41,634 |
| 63123 | standard | St. Louis | 49,077 |
| 63124 | standard | St. Louis | 10,839 |
| 63125 | standard | St. Louis | 33,294 |
| 63126 | standard | St. Louis | 15,452 |
| 63127 | standard | St. Louis | 5,268 |
| 63128 | standard | St. Louis | 30,540 |
| 63129 | standard | St. Louis | 51,553 |
| 63130 | standard | St. Louis | 28,910 |
| 63131 | standard | St. Louis | 17,935 |
| 63132 | standard | St. Louis | 14,283 |
| 63133 | standard | St. Louis | 6,569 |
| 63134 | standard | St. Louis | 13,059 |
| 63135 | standard | St. Louis | 18,381 |
| 63136 | standard | St. Louis | 40,929 |
| 63137 | standard | St. Louis | 19,684 |
| 63138 | standard | St. Louis | 18,233 |
| 63139 | standard | St. Louis | 21,631 |
| 63140 | standard | St. Louis | 316 |
| 63141 | standard | St. Louis | 20,932 |
| 63143 | standard | St. Louis | 8,975 |
| 63144 | standard | St. Louis | 9,505 |
| 63146 | standard | St. Louis | 30,678 |
| 63147 | standard | St. Louis | 8,173 |
| 63155 | standard | St. Louis | — |
Finding a ZIP+4 in Saint Louis
Knowing which of these 46 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 Saint Louis street almost always have different ZIP+4 codes even though they share all five leading digits.
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