St. Louis County, Missouri ZIP codes
50ZIP codes
13Cities and towns
1,028,683People in ZIP areas
314, 557, 618Area codes
St. Louis County is in Missouri and the Central Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.
All ZIP codes in St. Louis County
| ZIP code | City | Type | Population | Median income |
|---|---|---|---|---|
| 63005 | Chesterfield | Standard | 19,779 | $198,469 |
| 63006 | Chesterfield | PO Box only | – | – |
| 63011 | Ballwin | Standard | 35,920 | $124,454 |
| 63017 | Chesterfield | Standard | 43,243 | $127,095 |
| 63021 | Ballwin | Standard | 55,666 | $120,177 |
| 63022 | Ballwin | PO Box only | – | – |
| 63024 | Ballwin | PO Box only | – | – |
| 63025 | Eureka | Standard | 19,508 | $125,676 |
| 63026 | Fenton | Standard | 45,354 | $97,553 |
| 63031 | Florissant | Standard | 50,196 | $70,811 |
| 63032 | Florissant | PO Box only | – | – |
| 63033 | Florissant | Standard | 43,056 | $66,776 |
| 63034 | Florissant | Standard | 18,908 | $103,905 |
| 63038 | Wildwood | Standard | 7,107 | $186,450 |
| 63040 | Wildwood | Standard | 8,526 | $133,220 |
| 63042 | Hazelwood | Standard | 17,813 | $49,453 |
| 63043 | Maryland Heights | Standard | 21,924 | $91,509 |
| 63044 | Bridgeton | Standard | 10,324 | $77,819 |
| 63045 | Earth City | Standard | – | – |
| 63074 | Saint Ann | Standard | 15,793 | $51,610 |
| 63088 | Valley Park | Standard | 8,226 | $65,769 |
| 63099 | Fenton | Unique | – | – |
| 63105 | Saint Louis | Standard | 18,875 | $116,439 |
| 63114 | Saint Louis | Standard | 33,969 | $55,870 |
| 63117 | Saint Louis | Standard | 9,261 | $90,921 |
| 63119 | Saint Louis | Standard | 34,181 | $106,183 |
| 63121 | Saint Louis | Standard | 25,008 | $42,701 |
| 63122 | Saint Louis | Standard | 41,634 | $136,385 |
| 63123 | Saint Louis | Standard | 49,077 | $77,055 |
| 63124 | Saint Louis | Standard | 10,839 | $193,942 |
| 63125 | Saint Louis | Standard | 33,294 | $61,624 |
| 63126 | Saint Louis | Standard | 15,452 | $98,852 |
| 63127 | Saint Louis | Standard | 5,268 | $122,663 |
| 63128 | Saint Louis | Standard | 30,540 | $92,359 |
| 63129 | Saint Louis | Standard | 51,553 | $94,888 |
| 63130 | Saint Louis | Standard | 28,910 | $85,823 |
| 63131 | Saint Louis | Standard | 17,935 | $225,493 |
| 63132 | Saint Louis | Standard | 14,283 | $87,385 |
| 63133 | Saint Louis | Standard | 6,569 | $39,293 |
| 63134 | Saint Louis | Standard | 13,059 | $44,680 |
| 63135 | Saint Louis | Standard | 18,381 | $52,328 |
| 63136 | Saint Louis | Standard | 40,929 | $41,154 |
| 63137 | Saint Louis | Standard | 19,684 | $43,422 |
| 63138 | Saint Louis | Standard | 18,233 | $56,096 |
| 63140 | Saint Louis | Standard | 316 | $45,568 |
| 63141 | Saint Louis | Standard | 20,932 | $133,851 |
| 63143 | Saint Louis | Standard | 8,975 | $65,861 |
| 63144 | Saint Louis | Standard | 9,505 | $104,438 |
| 63145 | Saint Louis | PO Box only | – | – |
| 63146 | Saint Louis | Standard | 30,678 | $84,756 |
Cities and towns in St. Louis County
- Saint Louis 28 ZIPs
- Ballwin 4 ZIPs
- Florissant 4 ZIPs
- Chesterfield 3 ZIPs
- Fenton 2 ZIPs
- Wildwood 2 ZIPs
- Bridgeton 1 ZIP
- Earth City 1 ZIP
- Eureka 1 ZIP
- Hazelwood 1 ZIP
- Maryland Heights 1 ZIP
- Saint Ann 1 ZIP
- Valley Park 1 ZIP
Area codes in St. Louis County
Questions
- How many ZIP codes are in St. Louis County, MO?
- St. Louis County has 50 ZIP codes, 44 of them standard ZIP codes for street addresses.
- What cities are in St. Louis County?
- St. Louis County ZIP codes cover Saint Louis, Ballwin, Florissant, Chesterfield, Fenton, Wildwood, Bridgeton and Earth City and 5 other places.
- What area code is St. Louis County, MO?
- St. Louis County uses area codes 314, 557, 618 and 636.
- What time zone is St. Louis County in?
- St. Louis County is in Central Time.
Other Missouri counties
- Adair County
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