Largest U.S. State: Alaska

Alaska is the largest U.S. state by land area:

• Alaska: 665,384 sq mi (1,723,337 km²)
• Texas: 268,596 sq mi (695,662 km²)
• California: 163,695 sq mi (423,967 km²)
• Montana: 147,040 sq mi (380,831 km²)
• New Mexico: 121,590 sq mi (314,917 km²)

Alaska is >2.5× Texas, >4× California, and larger than the next three combined. It comprises 17.5% of total U.S. land area.