The 15 Largest U.S. States by Land Area

Ranked by total land area (square miles / square kilometers), the 15 biggest states showcase the vastness of the American West and Alaska.

RankStateLand Area (sq mi)Land Area (km²)
1Alaska663,2681,717,854
2Texas268,597695,662
3California163,696423,970
4Montana147,046380,838
5New Mexico121,590314,915
6Arizona113,990295,254
7Nevada110,572286,367
8Colorado104,094269,837
9Oregon98,381254,802
10Wyoming97,818253,348
11Michigan96,716250,493
12Minnesota86,936225,181
13South Dakota77,116200,231
14North Dakota70,762183,272
15Nebraska77,220200,028

Key Observations

  • Alaska is larger than the next three (TX, CA, MT) combined.
  • Top 10 are all west of the Mississippi except Michigan.
  • Michigan ranks high due to Great Lakes water area excluded—land area only.
  • Nebraska (15) edges South Dakota (13) by ~100 sq mi.

Source: U.S. Census Bureau, 2020 Gazetteer Files (land area only, excluding inland/coastal water).

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