ZIP Code 63378 is located in Treloar Missouri. 63378 is entirely within Warren County. Regionally, 63378 is located in Metro St. Louis.
| ZIP Code Name | Treloar |
| Primary County | Warren County |
| ZIP Code Type | PO Box |
| Current Time | CST |
| Coordinates | 38.64292145,-91.18742371 |
| Adjacent ZIP Codes | |
| Region | Metro St. Louis |
| Metropolitan/Micropolitan Stat Area | St. Louis, MO-IL |
| Time Zone | Central Standard Time |
| IANA Timezone | America/Chicago |
| School Districts in 63378 | |
| Elementary Schools in 63378 | |
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| High Schools in 63378 |