How Big is Idaho?

Idaho is a large state known for its wilderness areas. It is the 14th largest state in America. It has a total area of 83,570 square miles. Idaho is so large that it borders on six states (Washington, Oregon, Nevada, Utah, Montana, and Wyoming) and even one Canadian province (British Columbia).

Idaho has the largest contiguous wilderness area in the continental United States, the Frank Church-River of No Return Wilderness Area. This wilderness area measures a massive 2.3 million square miles. Idaho also has several other large national parks and wilderness areas.

How big is Idaho by population?

Despite its large size, Idaho has a relatively small population. Its population is estimated at about 1.8 million people. This makes it the 13th least populous state in America. It is also the country's 7th least densely populated state.

The vast majority of Idaho's population lives in the southern half of the state. In fact, only about one-quarter of Idahoans live in the northern half of the state. Southern Idaho is home to the state's largest city is Boise, which is also the state's capital. The estimated population of the city proper is 240,380, while the Boise metropolitan area has an estimated population of 749,202.

State Name
Idaho
Area (mi²)
83,568.95
Area (km²)
216,443
Acres
53,485,229.73
Area Ranking
14
% of US Size
2.31%

Similar-Sized Countries

Compared to Largest State

Idaho has approximately 12.56% the land area of Alaska. In other words, Alaska is approximately 7.96 times larger than Idaho.

Compared to Smallest State

Rhode Island has approximately 1.85% the land area of Idaho. In other words, Idaho is approximately 54.09 times larger than Rhode Island.

How Big is Idaho?

What is the area of Idaho?

The area of Idaho is 83,569 square miles.

Is Idaho a big or small state?

Idaho is the 14th largest state in the US.

Which states are similar size to Idaho?

The next smallest state is Kansas and the next largest state is Utah.

Frequently Asked Questions