| Zip Code | City | Population ↓ |
|---|---|---|
| 99654 | Wasilla | 44,647 |
| 99645 | Palmer | 32,103 |
| 99623 | Wasilla | 23,424 |
| 99652 | Big Lake | 4,313 |
| 99688 | Willow | 2,739 |
| 99674 | Sutton | 1,774 |
| 99676 | Talkeetna | 1,628 |
| 99694 | Houston | 1,516 |
| 99683 | Trapper Creek | 583 |
| 99667 | Skwentna | 261 |
| 99729 | Cantwell | 128 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 11 ZCTAs in Matanuska-Susitna Borough, Alaska (US Census).