On October 8, 1954, the Perryville State Battlefield Site was established

Another interesting fact about the battle of Perryville is that on October 8, 1954, the Perryville State Battlefield Site was established. Perryville became the location of the state's most catastrophic Civil War combat, which killed, maimed, or went missing about 7,600 people. Perryville Battlefield State Historic Site is presently a 745-acre park in Boyle County, Kentucky, near Perryville. The park is being expanded with tracts purchased by the Kentucky Heritage Land Conservation Fund and the American Battlefield Trust from the Office of Kentucky Nature Preserves.

The Commonwealth of Kentucky has conserved portions of the Perryville battlefield. The Perryville Historic District, which encompasses downtown Perryville, also includes structures that played roles in the fight, such as the Elmwood home, which was pushed into service as a field hospital during the battle. The American Battlefield Trust, its members, and the Kentucky Heritage Land Conservation Fund of the Office of Kentucky Nature Preserves have conserved 1,202 acres in the Perryville Battlefield until late 2021.

A museum interprets the place where many Confederate troops killed in the Battle of Perryville are buried. In addition, monuments, interpretative plaques, and cannons commemorate significant events that occurred during the war. In 1936, the site was added to the Kentucky State Park System.