ZIP Code 63341 – Defiance, MO
Defiance, Missouri · St. Charles County · Central time
| ZIP code | 63341 |
|---|---|
| City | Defiance |
| State | Missouri |
| County | St. Charles County |
| Population | 3,515 |
| Time zone | Central · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 38.83 sq mi |
| Center (lat, long) | 38.6606, -90.8068 |
Area codes in this area
These are the area codes that most often serve ZIP 63341 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
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Nearby ZIP codes
About ZIP 63341
ZIP code 63341 is assigned to Defiance, Missouri. It lies in St. Charles County. Its Census area covers about 38.83 square miles of land. The closest neighboring ZIP is 63365 (New Melle), about 4.9 miles away.
Every address in 63341 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources