ICAO		IATA		Other		Location
KJPN		JPN		JPN		Washington [Pentagon Army Heliport], District of Columbia, US (30 mi / 48 km W)
KMTN		MTN		MTN		Baltimore [Martin State Airport], Maryland, US (30 mi / 49 km N)
				MD25		Columbia [Howard County General Hospital Heliport], Maryland, US (30 mi / 49 km NW)
				88MD		Easton [Beaven Field], Maryland, US (30 mi / 49 km E)
				MD23		Church Hill [Kennersley Airport], Maryland, US (30 mi / 49 km NE)
				44MD		Baltimore [Union Memorial Hospital Heliport], Maryland, US (31 mi / 49 km N)
				DC06		Washington [MPD 2nd Heliport], District of Columbia, US (31 mi / 50 km W)
				8MD2		Baltimore [Montebello Filtration Plant Heliport], Maryland, US (31 mi / 50 km N)
				DC09		Washington [Medstar Georgetown University Hospital Helistop], District of Columbia, US (31 mi / 50 km W)
				90MD		Baltimore [Medstar Franklin Heliport], Maryland, US (32 mi / 51 km N)
				MD91		Church Hill [Saxon Farms Airport], Maryland, US (32 mi / 51 km NE)
				MD58		Olney [Montgomery County Police Norwood Heliport], Maryland, US (32 mi / 52 km NW)
				MD33		Cambridge [Dorchester General Hospital Heliport], Maryland, US (32 mi / 52 km SE)
				6MD1		Denton [Dileo Field], Maryland, US (32 mi / 52 km E)
				MD51		Chestertown [Chester River Hospital Heliport], Maryland, US (33 mi / 52 km NE)
				VA82		Alexandria [Mount Vernon Hospital Heliport], Virginia, US (33 mi / 52 km W)
				60MD		Bethesda [Walter Reed National Medical Center Heliport], Maryland, US (33 mi / 53 km W)
				9VA2		Alexandria [Inova Alexandria Hospital Heliport], Virginia, US (33 mi / 53 km W)
				8MD3		Baltimore [Sinai II Heliport], Maryland, US (33 mi / 53 km N)
				DC52		Washington [Sibley Memorial Hospital Heliport], District of Columbia, US (33 mi / 53 km W)