North Myrtle Beach is a city in Horry County, South Carolina, United States. It was created in 1968 from four existing municipalities, and i…North Myrtle Beach is a city in Horry County, South Carolina, United States. It was created in 1968 from four existing municipalities, and is located about 15 miles northeast of Myrtle Beach. It serves as one of the primary tourist destinations along the Grand Strand.