6.7 Acre parcel at the Hard Corner of John King Blvd & FM 552 with traffic signal inside the city limits of Rockwall. Rockwall County, one of the fastest growing counties in the U.S. Next to J.W. Williams Middle school and Hamm Elementary School. John King Blvd (9,406 Vehicles Per Day) FM 552 (7,657 Vehicles Per Day)