Idaho (Idaho) is in the northwest of the United States, adjacent to Canada. The land area is 216,413 square kilometers and the population is 1.36 million. Idaho's economy is dominated by agriculture, logging, and mining, and today's industry and tourism are also doing well. The capital is Boise, which is also the largest city in Idaho. The area code for Idaho is 208, and the zip code for the main city, Boise, is 83701. The zip code for Pocatello is 83201 and the zip code for Idaho Falls is 83401.