The Potomac River is a major river in the eastern United States. It flows through several states and eventually empties into the Chesapeake Bay. This article lists the many islands found in the Potomac River, as well as its two main parts, the North Branch and the South Branch.
Most of the islands in the Potomac River belong to Maryland. This is because the river itself is considered part of Maryland. However, there are a few exceptions, like some islands located in the District of Columbia or Virginia.
Islands of the Potomac River
The table below shows a list of islands in the main Potomac River. They are listed in order from upstream (closer to the river's source) to downstream (closer to where it meets the Chesapeake Bay).
Name |
Order downstream |
State |
Location |
Okonoko Island |
2 |
Maryland |
? |
Hancock Island |
8 |
Maryland |
? |
Sleepy Creek Islands |
10 |
Maryland |
? |
Back Creek Island |
13 |
Maryland |
? |
Duck Island |
16 |
Maryland |
Washington County at Marlowe, West Virginia |
Shepherds Island |
18 |
Maryland |
Washington County at Marlowe, West Virginia |
Knott Island |
19 |
Maryland |
Washington County near Antietam |
Byrnes Island |
20 |
Maryland |
Washington County at Harper's Ferry, West Virginia |
Colonial Island |
22 |
Maryland |
Frederick County at Knoxville |
Catoctin Creek Island |
23 |
Maryland |
? |
Paton Island |
25 |
Maryland |
Frederick County at Point of Rocks |
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 Seneca 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 |
Torpedo Island |
44 |
Maryland |
Montgomery County near Pennyfield Lock |
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
(formerly Great Falls 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
(formerly Cupid's Bower 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 (Maryland) |
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 |
Little 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 (Maryland) |
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 |
Lock Island |
? |
Maryland |
Montgomery County in the Chesapeake and Ohio Canal National Historical Park |
Islands of the North Branch Potomac River
The North Branch is one of the two main parts of the Potomac River. Here is a list of islands found in this branch.
Name |
Order downstream |
State |
Location |
Longs Island |
1 |
Maryland |
? |
Islands of the South Branch Potomac River
The South Branch is the other main part of the Potomac River. This table lists the islands located in this section.
See also