Idaho's state capital and largest city is Boise. With an area of 83,569 square miles (216,440 km2), Idaho is the 14th-largest state by land area. The state has a population of approximately two million people; it ranks as the 13th-least populous and the seventh-least densely populated of the 50 U.S. states.

Find Idaho services, resources, and information in one place. Explore government, business, education, outdoor activities, and tools to help you live and thrive here.

Explore Idaho geography, Boise, history, population, government, economy, major businesses, education, parks, recreation, symbols and official sources.

Idaho's state capital and largest city is Boise. With an area of 83,569 square miles (216,440 km 2), Idaho is the 14th-largest state by land area. The state has a population of approximately two million people; it ranks as the 13th-least populous and the seventh-least densely populated of the 50 U.S. states.

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Our expert travel guides have curated the ultimate Idaho itineraries — from a quick Boise weekend escape to an epic 2-week loop through all five regions. Get insider tips on the best seasons to visit, how to get around, where to stay, and hidden gems only locals know about.

Discover Idaho’s history, symbols, holidays, and natural wonders. Explore quick facts and family-friendly resources to learn what makes our state unique.

Geographical and historical treatment of Idaho, including maps and a survey of its people, economy, and government. Idaho is shaped much like a logger’s boot, thereby accidentally reflecting the state’s rugged forested and mountainous terrain in which logging and mining play major roles.

A mixture of forested mountains, alpine peaks, wildflower meadows, deep river canyons, and high plains deserts, Idaho is a paradise for golf, skiing, fly fishing, and river rafting. Boise, the capital, is the state's largest city and airline hub.

Today’s Idaho is both cosmopolitan and small-town friendly. Boise, the capital and largest city, developed near Fort Boise along the Oregon Trail has grown to a population of 190,000. Agriculture, manufacturing and tourism are Idaho’s major industries.