Blacklick is a small unincorporated community in southern Jefferson Township, Franklin County, Ohio, United States. Blacklick is also included in the Columbus Metropolitan area. The tiny community began as a railroad station and is situated at the intersection of the railroad and High Street (known outside the community as Reynoldsburg New Albany Rd.) just north of Broad Street in eastern Franklin County. Blacklick Creek gently flows through Blacklick and serves as the community's namesake.