Idaho is a northwestern U.S. state situated Pacific in the Northwest region of the Western United States. It is best known for its potato crop. The Nickname of the state is Gem State. Boise is the capital of Idaho. Idaho Zip Code started with the digit 8320. The total number of Idaho Zip Code approximately 317. The total population of Idaho about 1,787,065. So you can find any information about Idaho especially zip codes, area codes, Populations, cities, county and so on.