ZIP CodesIdaho ZIP codes: every city, town and county
320 ZIP codes of Idaho (ID), listed by place and by county. Every code of the state starts with 8.
Idaho at a glance
- ZIP codes in this list
- 320
- Lowest and highest
- 83201 to 83877
- First digit
- 8
- Three-digit prefixes
- 7, from 832 to 838
- Counties or equivalent areas
- 44
- Places named
- 266
- Most codes for one place
- Boise (28)
- Largest ZIP code area
- 83611 Cascade, 2,679 sq mi
By county
- Ada County 34
- Adams County 4
- Bannock County 12
- Bear Lake County 9
- Benewah County 6
- Bingham County 10
- Blaine County 7
- Boise County 7
- Bonner County 16
- Bonneville County 11
- Boundary County 5
- Butte County 3
- Camas County 3
- Canyon County 15
- Caribou County 5
- Cassia County 6
- Clark County 2
- Clearwater County 6
- Custer County 5
- Elmore County 6
- Franklin County 6
- Fremont County 8
- Gem County 4
- Gooding County 4
- Idaho County 13
- Jefferson County 8
- Jerome County 3
- Kootenai County 14
- Latah County 12
- Lemhi County 10
- Lewis County 5
- Lincoln County 3
- Madison County 4
- Minidoka County 4
- Nez Perce County 4
- Oneida County 2
- Owyhee County 5
- Payette County 3
- Power County 3
- Shoshone County 12
- Teton County 4
- Twin Falls County 9
- Valley County 5
- Washington County 3
By city or town
No place in Idaho matches. Try fewer letters, or the look-up for the whole country.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. Not connected with the United States Postal Service; for mailing, confirm the address with USPS.