| Locality | Post Code |
|---|---|
| Allen, Collin | 75002, 75013 |
| Anna, Collin | 75409 |
| Blue Ridge, Collin | 75424 |
| Celina, Collin | 75009 |
| Copeville, Collin | 75121 |
| Dallas, Collin | 75252, 75287 |
| Fairview, Collin | 75069 |
| Farmersville, Collin | 75442 |
| Frisco, Collin | 75035 |
| Josephine, Collin | 75173 |
| Lavon, Collin | 75166 |
| Lucas, Collin | 75002 |
| McKinney, Collin | 75069, 75070, 75071, 75072 |
| Melissa, Collin | 75454 |
| Murphy, Collin | 75094 |
| Nevada, Collin | 75173 |
| Parker, Collin | 75002, 75094 |
| Plano, Collin | 75023, 75024, 75025, 75074, 75075, … |
| Prestonwood, Collin | 75252 |
| Princeton, Collin | 75407 |
| Prosper, Collin | 75078 |
| Saint Paul, Collin | 75098 |
| Westminster, Collin | 75485 |
| Weston, Collin | 75097 |
| Wylie, Collin | 75098 |