Spring Gap, MD

ZIP code 21560 is located in Bethesda, Maryland. This area is most notable for being the location of the National Institutes of Health (NIH), a major biomedical research facility. Other prominent landmarks in this ZIP code include the Walter Reed National Military Medical Center and the Bethesda North Marriott Hotel & Conference Center. With its focus on healthcare and research, ZIP code 21560 is a hub of activity in the medical field.