11 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 83854 | Post Falls | 54,851 |
| 83815 | Coeur D Alene | 41,405 |
| 83814 | Coeur D Alene | 26,059 |
| 83835 | Hayden | 24,238 |
| 83858 | Rathdrum | 20,137 |
| 83801 | Athol | 7,553 |
| 83869 | Spirit Lake | 5,504 |
| 83876 | Worley | 1,563 |
| 83810 | Cataldo | 1,412 |
| 83833 | Harrison | 1,365 |
| 83842 | Medimont | 141 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 11 ZCTAs in Kootenai County, Idaho (US Census).