ZIP Code 75121 is located in Copeville Texas. 75121 is entirely within Collin County. Regionally, 75121 is located in Metro Dallas-Fort Worth.
| ZIP Code Name | Copeville |
| Primary County | Collin County |
| ZIP Code Type | PO Box |
| Current Time | CDT |
| Coordinates | 33.08046722,-96.42301941 |
| Adjacent ZIP Codes | |
| Region | Metro Dallas-Fort Worth |
| Metropolitan/Micropolitan Stat Area | Dallas-Fort Worth-Arlington, TX |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| School Districts in 75121 | |
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| High Schools in 75121 |