Ketchum is a city located in Blaine County, in the state of Idaho (ID), United States. Nestled in the Mountain division of the West region, it covers an area of 3.0 square miles (8.0 km²) and sits at an elevation of 5845 ft. With a population of approximately 3,003 residents, Ketchum offers a peaceful, rural atmosphere.
The town's population is composed of about 53.75% males and 46.25% females, and it has a population density of 991.09 people per square mile (382.66/km²). Ketchum lies at a latitude of 43.68 and a longitude of -114.37, operating in the UTC-7.
Locals reflect a blend of American ancestry, with roots primarily in United States (0%), followed by English (19.7%), German (20.6%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 83340.