Ten Longest Rivers in the United States

US Rivers by Length (Main Stem)

RankRiverLength (miles)Key States
1Missouri River2,341MT, ND, SD, NE, IA, KS, MO
2Mississippi River2,340MN, WI, IA, IL, MO, KY, TN, AR, MS, LA
3Yukon River1,980AK, BC/YT (Canada)
4Rio Grande1,896CO, NM, TX (border MX)
5Colorado River1,450CO, UT, AZ, NV, CA (border MX)
6Arkansas River1,469CO, KS, OK, AR
7Columbia River1,243BC (CA), WA, OR
8Red River (South)1,360TX, OK, AR, LA
9Snake River1,038WY, ID, OR, WA
10Ohio River981PA, OH, WV, KY, IN, IL

Notes

  • Missouri > Mississippi by ~1 mi (source to confluence).
  • Yukon mostly in Alaska/Canada.
  • Colorado heavily dammed; rarely reaches sea.
  • Lengths vary by source definition (USGS vs. state).
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