Ketchum, ID is a city located in Blaine County, Idaho and has a land area of 557.70 square miles (1,444.44 km2). The water area for the city is 3.11 square miles or 8.05 km2. There is one unique zip code in Ketchum, Idaho and it is 83340. The area code(s) for Ketchum is 208.
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