Post Offices in North Myrtle Beach, South Carolina, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Coastal Post Office No Reviews Favorite Phone: (843) 272-5864Retail Hours North Myrtle Beach Post Office No Reviews Favorite Fax: (843) 272-5954Phone: (843) 272-5864Retail Hours