The Largest Landlocked States in the US

When it comes to American geography, the spotlight often shines on states with scenic coastlines, bustling ports, and ocean views. But the vast interior of the United States holds its own natural grandeur. Landlocked states, those that do not border an ocean or gulf, make up a majority of the US and include some of the most expansive, diverse, and ecologically rich territories in the country.

While they may not touch saltwater, these states are surrounded by others, forming a core part of inland America. Take a look at the largest landlocked states by area, exploring their unique geography, the neighboring states that landlock them, and what makes them significant.

Montana

• Total Area: 147,040 square miles

• Landlocked By: North Dakota, South Dakota, Wyoming, and Idaho

• Capital: Helena

Montana is the largest landlocked state in the United States and the fourth largest overall. Often called "Big Sky Country," Montana is home to wide-open plains, rugged mountain ranges, and parts of Yellowstone National Park. Its terrain ranges from the dramatic peaks of the Rocky Mountains in the west to the rolling prairies in the east.

The state is a haven for outdoor recreation, including fly fishing, hiking, and wildlife viewing. Montana's economy thrives on agriculture, mining, and tourism. With over 100 mountain ranges, including the Bitterroot and Beartooth ranges, Montana embodies the raw beauty of the American West.

New Mexico

Close up of the USA on a map with New Mexico in sharp focus.

• Total Area: 121,590 square miles

• Landlocked By: Colorado, Oklahoma, Texas, and Arizona

• Capital: Santa Fe

New Mexico ranks as the fifth largest state in the country and second among landlocked states. It features a dramatic mix of desert, high plains, and mountain landscapes. The state's cultural identity is equally diverse, shaped by Native American, Hispanic, and Anglo influences.

The Rocky Mountains stretch into northern New Mexico, while the southern region is dominated by arid desert. Major attractions include White Sands National Park, Carlsbad Caverns, and historic Santa Fe. New Mexico's economic base includes oil and gas, tourism, military bases, and technology.

Arizona

• Total Area: 113,990 square miles

• Landlocked By: California, Nevada, Utah, and New Mexico

• Capital: Phoenix

Arizona is known worldwide for the Grand Canyon, but its overall size and geographic diversity often go overlooked. As the third largest landlocked state, Arizona features mountain ranges, forests, deserts, and plateaus. Its climate varies dramatically from scorching summers in the Sonoran Desert to snowy winters in the north.

The state plays a vital role in American agriculture and mining. Tourism is a major industry, with millions visiting its national parks and historic towns each year. Arizona's rich indigenous heritage, seen in places like Navajo Nation and Hopi lands, adds layers of cultural depth to its wide landscapes.

Nevada

• Total Area: 110,572 square miles

• Landlocked By: Oregon, Idaho, Utah, Arizona, and California

• Capital: Carson City

Despite being famous for the neon lights of Las Vegas, Nevada is mostly rural and mountainous. Much of its land is federally owned, and vast stretches are covered by the Mojave Desert and rugged mountain ranges. Nevada ranks as the seventh largest state in total area and the fourth largest landlocked state.

Besides tourism, the state has a strong mining industry, being a top producer of gold in the United States. Outdoor opportunities abound, from skiing near Lake Tahoe to hiking in the Red Rock Canyon National Conservation Area.

Colorado

• Total Area: 104,094 square miles

• Landlocked By: Wyoming, Nebraska, Kansas, Oklahoma, New Mexico, Arizona, and Utah

• Capital: Denver

Colorado offers a striking mix of towering mountains, high plains, and deep canyons. It is the fifth largest landlocked state and home to 58 mountain peaks over 14,000 feet, known as "fourteeners."

The state attracts millions each year for skiing, hiking, and rafting. The economy is bolstered by aerospace, technology, energy, and agriculture. From Rocky Mountain National Park to Mesa Verde, Colorado's landscape is as dynamic as its industries.

Wyoming

• Total Area: 97,813 square miles

• Landlocked By: Montana, South Dakota, Nebraska, Colorado, Utah, and Idaho

• Capital: Cheyenne

Wyoming is the least populous state in the country but ranks sixth among landlocked states by area. Known for its sweeping plains and rugged mountain ranges, Wyoming is home to two iconic national parks: Yellowstone and Grand Teton.

The state's economy leans heavily on mineral extraction, including coal, natural gas, and trona. Tourism is also significant, particularly in Jackson Hole and Cody. Wyoming maintains a strong cowboy culture and a rich history tied to the frontier era.

Utah

• Total Area: 84,897 square miles

• Landlocked By: Idaho, Wyoming, Colorado, New Mexico, Arizona, and Nevada

• Capital: Salt Lake City

Utah rounds out the list of the seven largest landlocked states. It is geographically diverse, featuring salt flats, red rock canyons, mountain ranges, and high deserts. The Wasatch Range runs north to south through the state and is home to world-class ski resorts.

Utah is a hotspot for outdoor enthusiasts and national park lovers. It contains five national parks known collectively as the "Mighty 5": Arches, Bryce Canyon, Canyonlands, Capitol Reef, and Zion. Its growing tech industry, dubbed the "Silicon Slopes," adds to its economic appeal.

America's Inland Giants

From towering peaks to expansive plains, the landlocked states of the United States offer a vast range of landscapes and opportunities. Though they may lack a coastline, these states are rich in natural wonders, cultural heritage, and economic significance. They remind us that inland America is just as vital and awe-inspiring as its coastal edges.

All Landlocked States by Total Area