Ecosystem Information

The Mississippi Alluvial Valley extends 954 river miles from the confluence of the Ohio and Mississippi rivers at Cairo, Illinois to the Gulf of Mexico.  The alluvial valley ranges from 30 to 110 miles wide and encompasses approximately 22 million  acres. At least 91 species of freshwater fish are found in the valley.  Nearly 40% of North America's waterfowl and 60% of all bird species in the United States migrate through the valley.

The Mississippi Alluvial Valley covers a portion of six states: Mississippi, Tennessee, Kentucky, Missouri, Arkansas and Louisiana.  The area consists of over 115 counties. Approximately 2.7 million people live within the Mississippi Alluvial Valley.     

Click on the following links to obtain specific Mississippi Alluvial Valley data.

• Socio-Economic Data

• Water Quality

• Endangered/Threatened Species