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.

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.

The Boise metropolitan area, located in the Treasure Valley, includes five counties of Idaho with an estimated population of 846,000, the most populous metropolitan area in Idaho and 95th-most populous in the United States.

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.

Coeur d’Alene (pronounced “kor-duh-lane”), Idaho is a lake-side city located in North Idaho’s Panhandle. It is a great place for golfing, boating, biking, fishing, and relaxation.

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

Founded in 1889, University of Idaho is the state’s land-grant university and only Carnegie R1 research institution. From the main campus in Moscow to centers across Idaho and online, U of I offers more than 200 areas of study spanning undergraduate, graduate and professional education.

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

L'Idaho è un importante stato agricolo, producendo quasi un terzo di tutte le patate coltivate negli Stati Uniti. Le industrie principali sono quelle alimentari, del legname, meccaniche, chimiche, cartiere, elettroniche, miniere d'argento e infine il turismo.