| Zip Code | City | Population ↓ |
|---|---|---|
| 83646 | Meridian | 76,023 |
| 83642 | Meridian | 62,279 |
| 83709 | Boise | 58,928 |
| 83704 | Boise | 42,719 |
| 83634 | Kuna | 36,286 |
| 83706 | Boise | 35,524 |
| 83616 | Eagle | 35,413 |
| 83713 | Boise | 31,549 |
| 83714 | Garden City | 27,564 |
| 83705 | Boise | 26,830 |
| 83702 | Boise | 24,163 |
| 83703 | Boise | 17,583 |
| 83669 | Star | 16,827 |
| 83712 | Boise | 9,071 |
| 83720 | Boise | 0 |
| 83725 | Boise | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 16 ZCTAs in Ada County, Idaho (US Census).