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The Central United States is sometimes conceived as between the "Eastern United States and "Western United States as part of a three-region model, roughly coincident with the U.S. Census' definition of the "Midwestern United States plus the western and central portions of the U.S. Census' definition of the "Southern United States. The Central States are typically considered to consist of "North Dakota, "South Dakota, "Nebraska, "Kansas, "Oklahoma, "Texas, "Minnesota, "Iowa, "Missouri, "Arkansas, "Louisiana, "Wisconsin, and "Illinois. Sometimes "Indiana, "Ohio, "Kentucky, "Tennessee, "West Virginia, "Mississippi, and "Alabama are also considered to be Central States.
Almost all of the area is in the "Gulf of Mexico "drainage basin, and most of that is in the "Mississippi Basin. Small areas near the "Great Lakes drain into the Great Lakes and eventually the "St. Lawrence River; the "Red River Basin is centered on the "North Dakota-"Minnesota border and drains to "Hudson Bay.
The "Central Time Zone is the same area plus the "Florida Panhandle, minus "Ohio, most of "Michigan, most of "Indiana, westernmost fringes of "Great Plains states, eastern and northern "Kentucky, eastern "Tennessee, and "El Paso, "Texas.
Floods have been a problem for the region during the 20th and early-21st century
"Census Bureau Divisions with Central in name.
Organizations that need to subdivide the US are free to define a "Central" region to fit their needs.