| Locality | Postal Code |
|---|---|
| Ad Dammam, Al-Dammam (الدمام) | 32211, 32212, 32213, 32214, 32221, … |
| Adh Dhahran, Al-Dammam (الظهران) | 32227, 32342, 34231, 34232, 34234, … |
| Al Khubar, Al-Dammam (الخبر) | 34218, 34219, 34226, 34227, 34233, … |
| Al Khuwildiyah, Al-Dammam (الخويلدية) | 32528 |
| Allat, Al-Dammam (علاة) | 32363, 32538, 32551 |
| An Nabiyah, Al-Dammam (النابية) | 32521 |