Princeton Downtown Commercial District

Princeton Downtown Commercial District is a historic district in downtown Princeton, Kentucky centered on the 1940s art deco courthouse. The district includes 44 contributing resources: 42 buildings, Big Spring Park, and the Confederate Soldier Monument. Most resources are located along East and West Main Street, East and West Court Square Street, and the adjacent buildings on West Market Street, South Harrison, West Washington, and South Jefferson. Most of the buildings are one or two-story brick structures built from the 1870s to the 1930s.

The downtown district was added to the National Register of Historic Places in 1988 because of the historic architecture and historical significance to the area. As of early 2007, this district of Princeton is participating in the Renaissance Kentucky/Main Street program.

These resources are also individually listed on the National Register of Historic Places:
 * Confederate Soldier Monument in the courthouse square
 * Champion-Shepherdson Building at 115 East Main Street, the oldest building in Princeton