ZIP Code 75138 is located in Duncanville Texas. 75138 is entirely within Dallas County. Regionally, 75138 is located in Metro Dallas-Fort Worth.
| ZIP Code Name | Duncanville |
| Primary County | Dallas County |
| ZIP Code Type | PO Box |
| Current Time | CDT |
| Coordinates | 32.64601135,-96.92552185 |
| 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 |
| Area | 0.00172983 Square Miles |
| School Districts in 75138 | |
| Elementary Schools in 75138 | |
| Middle Schools in 75138 | |
| High Schools in 75138 |