 Ohio State Route 528

State Route 528 (SR 528) is north–south state highway in the northeastern portion of the U.S. state of Ohio.The southern terminus is at an intersection with U.S. Route 422 (US 422) and SR 88 in the village of Parkman, about 6½ miles south of Middlefield, and its northern terminus is at U.S. Route 20 about north of Madison.