Louisville and Jefferson County cover a total of 397.68 square miles, with 380.46 square miles of land and 17.23 square miles of water, including the Ohio River. The city is strategically located along the Kentucky-Indiana border at the Falls of the Ohio, a natural feature that historically influenced commerce and settlement.

The city sits in Kentucky’s outer Bluegrass region, blending the Upper South character with Midwestern influences. Louisville’s landscape is largely a wide, flat floodplain surrounded by gently rolling hills, while the southwestern sections of the city feature hilly terrain, and the southernmost parts of Jefferson County enter the scenic Knobs region, home to the expansive Jefferson Memorial Forest. Early urban growth required draining swamplands and rerouting creeks to prevent flooding and disease.

Louisville is part of the Louisville-Jefferson County Metropolitan Statistical Area (MSA), which includes twelve surrounding counties across Kentucky and Southern Indiana. This MSA is further integrated into the Louisville–Elizabethtown–Madison Combined Statistical Area, linking multiple urban and micropolitan regions. Nearby metropolitan areas include Cincinnati, Lexington, Bowling Green, Nashville, and Indianapolis, highlighting Louisville’s regional connectivity.

The city’s geography has not only influenced its early development as a shipping and portage hub but continues to shape residential patterns, recreation, and urban planning, making Louisville a unique crossroads of riverfront commerce, scenic landscapes, and cultural intersections.