List of islands on the Potomac River

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This is a list of islands on the Potomac River and its North and South branches. Because the Potomac belongs to Maryland, the majority of its islands lie within that state with some exceptions.

Potomac River[edit]

Name Order downstream State Location
unnamed island 1 Maryland ?
Okonoko Island 2 Maryland ?
unnamed islands 3 Maryland ?
unnamed island 4 Maryland ?
unnamed island 5 Maryland ?
unnamed island 6 Maryland ?
unnamed island 7 Maryland ?
Hancock Island 8 Maryland ?
unnamed island 9 Maryland ?
Sleepy Creek Islands 10 Maryland ?
unnamed island 11 Maryland ?
unnamed island 12 Maryland ?
Back Creek Island 13 Maryland ?
unnamed island 14 Maryland ?
unnamed island 15 Maryland ?
Duck Island 16 Maryland Washington County at Marlowe, West Virginia
unnamed island 17 Maryland ?
Shepherds Island 18 Maryland Washington County at Marlowe, West Virginia
Knott Island 19 Maryland Montgomery County near Antietam
Byrnes Island 20 Maryland Washington County at Harper's Ferry, West Virginia
unnamed island 21 Maryland ?
Colonial Island 22 Maryland Frederick County at Knoxville
Catoctin Creek Island 23 Maryland ?
unnamed island 24 Maryland ?
Paton Island 25 Maryland Frederick County at Point of Rocks
unnamed island 26 Maryland ?
Heaters Island 27 Maryland Frederick County at Point of Rocks
Mason Island 28 Maryland Frederick County
Nolands Island 29 Maryland Frederick County
Meadow Island 30 Maryland Frederick County
Birdsaw Island 31 Maryland Frederick County
Cox Island 32 Maryland Frederick County
Mason Island 33 Maryland Montgomery County
Harrison Island 34 Maryland Montgomery County near River Creek, Virginia
Selden Island 35 Maryland Montgomery County near Leesburg, Virginia
Van Deventer Island 36 Maryland Montgomery County near Leesburg, Virginia
Tenfoot Island 37 Maryland Montgomery County near Leesburg, Virginia
Sharpshin Island 38 Maryland Montgomery County near Sterling, Virginia
Lowes Island 39 Virginia Loudoun County near Sterling
Pond Island 40 Maryland Montgomery County near Blockhouse Point
Patowmack Island 41 Virginia Fairfax County in Northern Virginia Regional Park
Elm Island 42 Maryland Montgomery County near Blockhouse Point
Grapevine Island 43 Maryland Montgomery County near Blockhouse Point
Katie Island 44 Maryland Montgomery County near Blockhouse Point
Watkins Island 45 Maryland Montgomery County
Sycamore Island 46 Maryland Montgomery County
Clagett Island 47 Maryland Montgomery County near Great Falls, Virginia
Gladys Island 48 Maryland Montgomery County
Minnehaha Island 49 Maryland Montgomery County
Bealls Island 50 Maryland Montgomery County
Powhatan Island 51 Maryland Montgomery County near Great Falls, Virginia
Conn Island 52 Maryland Montgomery County near Great Falls of the Potomac River
Olmsted Island 53 Maryland Montgomery County at Great Falls of the Potomac River
Rocky Islands 54 Maryland Montgomery County in Great Falls Park
Bear Island 55 Maryland Montgomery County at Great Falls Park
Sherwin Island 56 Maryland Montgomery County at Great Falls Park
Offutt Island 57 Maryland Montgomery County
Hermit Island 58 Maryland Montgomery County in the Chesapeake and Ohio Canal National Historical Park
Perry Island 59 Maryland Montgomery County
Herzog Island 60 Maryland Montgomery County in the Chesapeake and Ohio Canal National Historical Park
Turkey Island (Maryland) 61 Maryland Montgomery County at the Yellow Falls
Vaso Island 62 Maryland Montgomery County in the Chesapeake and Ohio Canal National Historical Park
Plummers Island 63 Maryland Montgomery County near Cabin John
Dots Island 64 Maryland Montgomery County near Cabin John
Swainson Island 65 Maryland Montgomery County near Cabin John
Wades Island 66 Maryland Montgomery County near Cabin John
Langley Island 67 Maryland Montgomery County near Cabin John
Minnie Island 68 Maryland Montgomery County near Cabin John
Cedar Island 69 Maryland Montgomery County at Glen Echo
Cabin John Island 70 Maryland Montgomery County at Glen Echo
Chatauqua Island 71 Maryland Montgomery County at Glen Echo
Ruppert Island 72 Maryland Montgomery County at Glen Echo
Sycamore Island 73 Maryland Montgomery County
Snake Island 74 Maryland Montgomery County at Little Falls Dam
High Island 75 Maryland Montgomery County at Brookmont
Three Sisters 76 District of Columbia District of Columbia
Theodore Roosevelt Island 77 District of Columbia District of Columbia
Small Island 78 District of Columbia District of Columbia
Columbia Island 79 District of Columbia District of Columbia
Daingerfield Island 80 Virginia Alexandria, Virginia
Goose Island 81 District of Columbia District of Columbia at the mouth of Oxon Creek
Rosilie Island 82 Maryland Prince George's County at the Woodrow Wilson Memorial Bridge
Hog Island 83 Virginia Fairfax County, Virginia at Wellington Heights
Chopawamsic Island 84 Virginia Prince William County at Quantico
Cobb Island 85 Maryland Charles County
Saint Margaret Island 86 Maryland St. Mary's County
Bullock Island 87 Maryland St. Mary's County in St. Catherine Sound
Saint Catherine Island 88 Maryland St. Mary's County at St. Catherine Sound
Saint Clement's Island 89 Maryland St. Mary's County
Saint George Island 90 Maryland St. Mary's County
Craney Island ? Maryland Charles County
Harris Island ? Maryland Montgomery County
Little Island ? District of Columbia District of Columbia
Lock Island ? Maryland Montgomery County in the Chesapeake and Ohio Canal National Historical Park

North Branch Potomac River[edit]

Name Order downstream State Location
Longs Island 1 Maryland ?

South Branch Potomac River[edit]

Name Order downstream State Location
unnamed island 1 ? ?
unnamed island 2 ? ?
unnamed islands 3 ? ?
Piss Pot Island 4 West Virginia ?
Valley View Island 5 West Virginia ?
unnamed island 6 ? ?
unnamed island 7 ? ?
unnamed island 8 ? ?
unnamed island 9 ? ?

See also[edit]