Island
Body of water
County
Elevation
Coordinates
Arizona Island[ 1]
Jackson Lake
Teton
6,811 feet (2,076 m)
43°57′58″N 110°39′10″W / 43.96611°N 110.65278°W / 43.96611; -110.65278 (Arizona Island )
Badger Island[ 2]
Jackson Lake
Teton
6,775 feet (2,065 m)
43°52′18″N 110°39′06″W / 43.87167°N 110.65167°W / 43.87167; -110.65167 (Badger Island )
Ball Island[ 3]
Cottonwood Creek
Teton
7,064 feet (2,153 m)
42°43′07″N 110°02′52″W / 42.71855°N 110.04766°W / 42.71855; -110.04766 (Ball Island )
Big Island[ 4]
Green River
Sweetwater
6,211 feet (1,893 m)
41°45′13″N 109°43′33″W / 41.75357°N 109.72597°W / 41.75357; -109.72597 (Big Island )
Boulder Island[ 5]
Leigh Lake
Teton
6,919 feet (2,109 m)
43°48′00″N 110°43′37″W / 43.80000°N 110.72694°W / 43.80000; -110.72694 (Boulder Island )
Bush Island[ 6]
Wind River
Fremont
7,519 feet (2,292 m)
43°29′20″N 109°34′18″W / 43.48889°N 109.57167°W / 43.48889; -109.57167 (Bush Island )
Carrington Island[ 7]
Yellowstone Lake
Teton
7,736 feet (2,358 m)
44°27′23″N 110°33′17″W / 44.45639°N 110.55472°W / 44.45639; -110.55472 (Carrington Island )
Cow Island[ 8]
Jackson Lake
Teton
6,798 feet (2,072 m)
43°55′55″N 110°38′42″W / 43.93194°N 110.64500°W / 43.93194; -110.64500 (Cow Island )
Dollar Island[ 9]
Jackson Lake
Teton
6,814 feet (2,077 m)
43°52′11″N 110°39′50″W / 43.86972°N 110.66389°W / 43.86972; -110.66389 (Dollar Island )
Donoho Point[ 10]
Jackson Lake
Teton
6,886 feet (2,099 m)
43°50′47″N 110°37′45″W / 43.84639°N 110.62917°W / 43.84639; -110.62917 (Donoho Point )
Dot Island[ 11]
Yellowstone Lake
Teton
7,746 feet (2,361 m)
44°27′07″N 110°24′35″W / 44.45194°N 110.40972°W / 44.45194; -110.40972 (Dot Island )
Elk Island[ 12]
Jackson Lake
Teton
6,873 feet (2,095 m)
43°51′41″N 110°40′39″W / 43.86139°N 110.67750°W / 43.86139; -110.67750 (Elk Island )
Ferry Island[ 13]
Green River
Sublette
6,745 feet (2,056 m)
42°31′25″N 110°03′21″W / 42.52361°N 110.05583°W / 42.52361; -110.05583 (Ferry Island )
Frank Island[ 14]
Yellowstone Lake
Teton
7,795 feet (2,376 m)
44°25′31″N 110°22′04″W / 44.42528°N 110.36778°W / 44.42528; -110.36778 (Frank Island )
Freezeout Island[ 15]
Green River
Sweetwater
6,253 feet (1,906 m)
41°50′36″N 109°47′19″W / 41.84333°N 109.78861°W / 41.84333; -109.78861 (Freezeout Island )
Grassy Island[ 16]
Jackson Lake
Teton
6,791 feet (2,070 m)
43°51′33″N 110°43′54″W / 43.85917°N 110.73167°W / 43.85917; -110.73167 (Grassy Island )
Indian Island[ 17]
Jackson Lake
Teton
6,778 feet (2,066 m)
43°57′40″N 110°39′33″W / 43.96111°N 110.65917°W / 43.96111; -110.65917 (Indian Island )
Johnson Island[ 18]
North Platte River
Carbon
6,640 feet (2,020 m)
41°34′24″N 106°58′04″W / 41.57333°N 106.96778°W / 41.57333; -106.96778 (Johnson Island )
Long Island[ 19]
Green River
Sublette
6,650 feet (2,030 m)
42°23′10″N 110°06′57″W / 42.38611°N 110.11583°W / 42.38611; -110.11583 (Long Island )
Mack Island[ 20]
New Fork River
Sublette
6,870 feet (2,090 m)
42°38′50″N 109°50′23″W / 42.64717°N 109.83959°W / 42.64717; -109.83959 (Mack Island )
Marie Island[ 21]
Jackson Lake
Teton
6,772 feet (2,064 m)
43°50′48″N 110°39′19″W / 43.84667°N 110.65528°W / 43.84667; -110.65528 (Marie Island )
Molly Islands[ 22] [ 23]
Yellowstone Lake
Teton
7,739 feet (2,359 m)
44°18′49″N 110°15′54″W / 44.31361°N 110.26500°W / 44.31361; -110.26500 (Molly Islands )
Moose Island[ 24]
Jackson Lake
Teton
6,778 feet (2,066 m)
43°55′30″N 110°39′01″W / 43.92500°N 110.65028°W / 43.92500; -110.65028 (Moose Island )
Mullison Island[ 25]
North Platte River
Carbon
6,778 feet (2,066 m)
41°27′57″N 106°48′29″W / 41.46583°N 106.80806°W / 41.46583; -106.80806 (Mullison Island )
Mystic Isle[ 26]
Leigh Lake
Teton
6,919 feet (2,109 m)
43°49′11″N 110°43′28″W / 43.81972°N 110.72440°W / 43.81972; -110.72440 (Mystic Isle )
Oxbow Bend[ 27]
Snake River
Teton
6,735 feet (2,053 m)
43°51′46″N 110°32′53″W / 43.86278°N 110.54806°W / 43.86278; -110.54806 (Oxbow Bend )
Peale Island[ 28]
Yellowstone Lake
Teton
7,743 feet (2,360 m)
44°17′17″N 110°18′59″W / 44.28806°N 110.31639°W / 44.28806; -110.31639 (Peale Island )
Pelican Roost[ 29]
Yellowstone Lake
Teton
7,736 feet (2,358 m)
44°31′20″N 110°18′20″W / 44.52222°N 110.30556°W / 44.52222; -110.30556 (Pelican Roost )
Sheffield Island[ 30]
Jackson Lake
Teton
6,804 feet (2,074 m)
43°52′37″N 110°39′18″W / 43.87694°N 110.65500°W / 43.87694; -110.65500 (Sheffield Island )
Stevenson Island [ 31]
Yellowstone Lake
Teton
7,762 feet (2,366 m)
44°30′55″N 110°23′04″W / 44.51528°N 110.38444°W / 44.51528; -110.38444 (Stevenson Island )
Tarters Island[ 32]
Green River
Sublette
6,709 feet (2,045 m)
42°29′02″N 110°04′36″W / 42.48389°N 110.07667°W / 42.48389; -110.07667 (Tarters Island )
Telephone Island[ 33]
Green River
Sweetwater
6,227 feet (1,898 m)
41°47′12″N 109°46′01″W / 41.78667°N 109.76694°W / 41.78667; -109.76694 (Telephone Island )
Treasure Island[ 34]
Bechler River
Teton
6,713 feet (2,046 m)
44°14′35″N 110°56′24″W / 44.24306°N 110.94000°W / 44.24306; -110.94000 (Treasure Island )
Willow Island[ 35]
Green River
Sublette
7,254 feet (2,211 m)
42°53′11″N 109°51′17″W / 42.88639°N 109.85472°W / 42.88639; -109.85472 (Willow Island )