The most commonly found habitat along the Mississippi River is wetlands.

Wetlands are the predominant habitat along the Mississippi River, playing an important role in the region's ecosystem. These areas are characterized by saturated soils and diverse plant life, providing essential breeding grounds for wildlife and supporting numerous fish species. Wetlands act as natural filters, improving water quality and absorbing floodwaters, thereby protecting surrounding communities. The rich biodiversity found in these habitats contributes significantly to the ecological health of the Mississippi River Basin.