| Zip Code | City | Population ↓ |
|---|---|---|
| 83622 | Garden Valley | 2,132 |
| 83629 | Horseshoe Bend | 1,879 |
| 83631 | Idaho City | 1,484 |
| 83637 | Lowman | 265 |
| 83666 | Placerville | 41 |
| 83602 | Banks | 5 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 6 ZCTAs in Boise County, Idaho (US Census).