National Harbor, Maryland
Census-designated place in Maryland, United States
National Harbor, Maryland
National Harbor is a census-designated place (CDP) in Prince George's County, Maryland, United States, located along the Potomac River near the Woodrow Wilson Bridge and just south of Washington, D.C. It originated as a 300-acre (1.2 km2) multi-use waterfront development. The population was 5,509 at the 2020 census. The developer, Peterson Companies, says National Harbor draws 12 million visitors annually, as of 2025.
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