Southern Indiana is a geographic and cultural region that generally comprises the southern third of the U.S. state of Indiana and borders the states of Illinois to the west, Kentucky to the south, and Ohio to the east. Spanning the state's southernmost 33 counties, its main population centers include Southwestern Indiana (anchored by the city of Evansville), the Louisville metropolitan area (south), and the Cincinnati metropolitan area (southeast). The region's history and geography have led to a blending of Southern and Midwestern cultures, distinct from the rest of the state. It is often considered to be part of the Upland South and the Southern influenced Lower Midwest.[1]
The Wabash and Ohio rivers form the region's western and southern boundaries, respectively. Elevation ranges from around 360 feet (110 m) above mean sea level at the rivers' confluence to 1,060 feet (320 m) at the highest point in the Knobstone Escarpment. Southern Indiana's topography is considerably more varied than Central and Northern Indiana, including large tracts of forest, rolling hills, and karst caves. The region is also home to the oldest exposed Devonian fossil beds in the world at the Falls of the Ohio National Wildlife Conservation Area. Situated in the Wabash Valley seismic zone, Southwestern Indiana is at elevated risk for earthquakes.
Kentuckiana, a portmanteau of "Kentucky" and "Indiana", is a loosely defined sub-region of the Upland South that spans north-central Kentucky and Southern Indiana's south-central counties. It is primarily centered on the Louisville metropolitan area. Counties typically considered part of the Kentuckiana sub-region include:
Southern Indiana also differs from the rest of the state linguistically. Southern dialect and South Midland dialect of American English are prevalent, as opposed to the Inland North dialect in far Northern Indiana and the North Midland dialect in Central and North-Central Indiana. Southern Indiana is the northernmost extent of the South Midland region, forming what linguists refer to as the "Hoosier Apex" of the South Midland dialect.
Educational institutions
About 12 accredited institutions of higher education are located throughout Southern Indiana, including some private, liberal arts colleges and multiple public university campuses, including the flagship campus of the Indiana University system, IU Bloomington. The "‡" symbol indicates universities with main campuses outside Southern Indiana.