Waterford is a unique place of historic significance. The entire village and surrounding countryside is a National Historic Landmark District, noted for its well-preserved 18th and 19th-century character. It is an unincorporated village and census-designated place in the Catoctin Valley of Loudoun County, Virginia, located along Catoctin Creek. Waterford is 47 miles …Waterford is a unique place of historic significance. The entire village and surrounding countryside is a National Historic Landmark District, noted for its well-preserved 18th and 19th-century character. It is an unincorporated village and census-designated place in the Catoctin Valley of Loudoun County, Virginia, located along Catoctin Creek. Waterford is 47 miles northwest of Washington, D.C., and 7 miles northwest of Leesburg.