What parishes in Louisiana are in the Mississippi Floodplain Region?

The Mississippi Floodplain Region in Louisiana includes several parishes, primarily those that are adjacent to the Mississippi River. Key parishes in this region are East Baton Rouge, West Baton Rouge, Iberville, Pointe Coupee, and Assumption. These areas are characterized by their low-lying topography and susceptibility to flooding from the river. The floodplain also encompasses parts of other nearby parishes, depending on seasonal river levels.