| Locality | Post Code |
|---|---|
| Amboy, Clark | 98601 |
| Battle Ground, Clark | 98604 |
| Brush Prairie, Clark | 98606 |
| Camas, Clark | 98607 |
| Chelatchie, Clark | 98601 |
| Heisson, Clark | 98622 |
| La Center, Clark | 98629 |
| Orchards, Clark | 98662 |
| Ridgefield, Clark | 98642 |
| Vancouver, Clark | 98660, 98661, 98662, 98663, 98664, … |
| Washougal, Clark | 98671 |
| Yacolt, Clark | 98675 |