Major Cities Between the Mississippi River and the Rocky Mountains

The vast region between the Mississippi River and the Rocky Mountains encompasses the Great Plains and parts of the Midwest. Key cities by state include:

Northern Plains

• North Dakota: Bismarck, Fargo, Grand Forks, Minot
• South Dakota: Pierre, Rapid City, Sioux Falls
• Nebraska: Lincoln, Omaha
• Kansas: Topeka, Wichita

Central Plains / Midwest

• Missouri: Columbia, Kansas City, St. Louis, Springfield
• Iowa: Cedar Rapids, Des Moines, Iowa City
• Minnesota: Minneapolis, St. Paul, Duluth, Rochester
• Wisconsin: Madison, Milwaukee, Green Bay, Eau Claire
• Illinois: Chicago, Springfield, Peoria, Rockford
• Indiana: Indianapolis, Fort Wayne, South Bend, Evansville
• Ohio: Columbus, Cleveland, Cincinnati, Toledo, Dayton, Akron
• Michigan: Lansing, Detroit, Grand Rapids, Flint, Ann Arbor

Southern / Transitional

• Kentucky: Frankfort, Louisville, Lexington, Covington
• Tennessee: Nashville, Memphis, Knoxville, Chattanooga
• Arkansas: Little Rock, Fort Smith, Fayetteville, Hot Springs
• Oklahoma: Oklahoma City, Tulsa, Norman, Lawton

This corridor includes major agricultural, industrial, and transportation hubs. The 100th Meridian roughly marks the transition from humid east to semi-arid west.