ZIP CodesZIP codes in Boise County, Idaho
Boise County, Idaho has 7 ZIP codes in this list, from 83602 to 83666. They cover 7 places, among them Banks, Garden Valley, Horseshoe Bend and Idaho City.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 83602 | Banks | 21.2 | 44.080, -116.124 |
| 83622 | Garden Valley | 278 | 44.091, -115.824 |
| 83629 | Horseshoe Bend | 194 | 43.923, -116.181 |
| 83631 | Idaho City | 168 | 43.883, -115.708 |
| 83637 | Lowman | 455 | 44.111, -115.528 |
| 83646 | Meridian | 27.3 | 43.650, -116.431 |
| 83666 | Placerville | 10.2 | 43.963, -115.976 |
The ZIP code areas of Boise County add up to about 1,154 square miles of land (2,989 sq km) as the Census Bureau draws them. The largest is 83637 (Lowman), with 455 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Banks, ID 83602.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.