
Ketchum
- County:
- Blaine County
- County Seat:
- No
- Area (mi²):
- 3.205
- State:
- Idaho
Ketchum is a city located in Blaine County, Idaho. Ketchum has a 2025 population of 3,644. Ketchum is currently growing at a rate of 0.47% annually and its population has increased by 2.33% since the most recent census, which recorded a population of 3,561 in 2020.
The average household income in Ketchum is $120,889 with a poverty rate of 6.16%. The median age in Ketchum is 54 years: 53.4 years for males, and 54.9 years for females.