ZIP Codes in Cadet, MO
Cadet uses 1 ZIP code, all in Washington County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 1 Cadet ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 63630 | standard | Washington | 4,006 |
Finding a ZIP+4 in Cadet
Knowing which of these 1 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 Cadet street almost always have different ZIP+4 codes even though they share all five leading digits.
Appending ZIP+4 to a mailing list?
Upload a CSV of Cadet addresses and download it complete.