| Zip Code | City | Population ↓ |
|---|---|---|
| 83854 | Post Falls | 50,378 |
| 83815 | Coeur D Alene | 38,934 |
| 83814 | Coeur D Alene | 26,611 |
| 83835 | Hayden | 23,229 |
| 83858 | Rathdrum | 18,575 |
| 83801 | Athol | 7,494 |
| 83869 | Spirit Lake | 5,667 |
| 83810 | Cataldo | 1,630 |
| 83876 | Worley | 1,566 |
| 83833 | Harrison | 1,390 |
| 83842 | Medimont | 99 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 11 ZCTAs in Kootenai County, Idaho (US Census).