Hayden
- County:
- Kootenai County
- County Seat:
- No
- Area (mi²):
- 10.529
- State:
- Idaho
Hayden is a city located in Kootenai County, Idaho. Hayden has a 2026 population of 16,924. Hayden is currently growing at a rate of 2.93% annually and its population has increased by 8.14% since the most recent census, which recorded a population of 15,650 in 2020.