List of largest lakes of the United States by area - wikipedia List of largest lakes of the United States by area The following is a list of the largest 100 lakes of the United States by normal surface area. The top twenty lakes in size are as listed by the National Atlas of the United States, a publication of the United States Department of the Interior. The area given is the normal or average area of the lake. The area of some lakes fluctuates substantially. For those lakes partially in Canada or Mexico the area given for the lake is the total area, not just the part of the lake in the United States. Of the top 100 lakes, 55 are man - made and 45 are natural. Three lakes in the top 100 are primarily salt water. See also : List of largest lakes of the United States by volume Rank Name U.S. states / Canadian provinces / Mexican states Area Type Notes Lake Superior Michigan - Minnesota - Wisconsin - Ontario 31,700 sq mi 82,103 km natural Lake Huron Michigan - Ontario 23,000 sq mi 59,570 km natural Lake Michigan Illinois - Indiana - Michigan - Wisconsin 22,300 sq mi 57,757 km natural Lake Erie Michigan - New York - Ohio - Ontario - Pennsylvania 9,910 sq mi 25,667 km natural Lake Ontario New York - Ontario 7,340 sq mi 19,011 km natural 6 Great Salt Lake Utah 2,117 sq mi 5,483 km natural salt 7 Lake of the Woods Manitoba - Minnesota - Ontario 1,679 sq mi 4,349 km natural 8 Iliamna Lake Alaska 1,014 sq mi 2,626 km natural 9 Lake Oahe North Dakota - South Dakota 685 sq mi 1,774 km man - made 10 Lake Okeechobee Florida 662 sq mi 1,715 km natural 11 Lake Pontchartrain Louisiana 631 sq mi 1,634 km natural salt 12 Lake Sakakawea North Dakota 520 sq mi 1,347 km man - made 13 Lake Champlain New York - Vermont - Quebec 490 sq mi 1,269 km natural 14 Becharof Lake Alaska 453 sq mi 1,173 km natural 15 Lake St. Clair Michigan - Ontario 440 sq mi 1,140 km natural 16 Red Lake Minnesota 427 sq mi 1,106 km natural 17 Selawik Lake Alaska 404 sq mi 1,046 km natural 18 Fort Peck Lake Montana 393 sq mi 1,018 km man - made 19 Salton Sea California 347 sq mi 899 km man - made salt 20 Rainy Lake Minnesota - Ontario 345 sq mi 894 km natural 21 Devils Lake North Dakota 300.0 sq mi 777 km natural 22 Toledo Bend Reservoir Louisiana - Texas 284 sq mi 736 km man - made 23 Lake Powell Arizona - Utah 251 sq mi 650 km man - made 24 Kentucky Lake Kentucky - Tennessee 250 sq mi 647 km man - made 25 Lake Mead Arizona - Nevada 247 sq mi 640 km man - made 26 Naknek Lake Alaska 242 sq mi 627 km natural 27 Lake Winnebago Wisconsin 215 sq mi 557 km natural 28 Mille Lacs Lake Minnesota 207 sq mi 536 km natural 29 Flathead Lake Montana 192 sq mi 497 km natural 30 Lake Tahoe California - Nevada 191 sq mi 495 km natural 31 Pyramid Lake Nevada 183 sq mi 474 km natural 32 Sam Rayburn Reservoir Texas 179 sq mi 464 km man - made 33 Eufaula Lake Oklahoma 169 sq mi 438 km man - made 34 Lake Marion South Carolina 165 sq mi 427 km man - made 35 Leech Lake Minnesota 161 sq mi 417 km natural 36 Utah Lake Utah 151 sq mi 391 km natural 37 Lake Francis Case South Dakota 149 sq mi 386 km man - made 38 Lake Pend Oreille Idaho 148 sq mi 383 km natural 39 Lake Texoma Oklahoma - Texas 139 sq mi 360 km man - made 40 Yellowstone Lake Wyoming 136 sq mi 352 km natural 41 Falcon Lake Tamaulipas - Texas 131 sq mi 339 km natural 42 Lake Livingston Texas 130 sq mi 337 km man - made 43 Lake Roosevelt Washington 128 sq mi 332 km man - made 44 Lake Clark Alaska 120 sq mi 311 km natural 45 Moosehead Lake Maine 117 sq mi 303 km natural 46 Lake Strom Thurmond Georgia - South Carolina 111 sq mi 287 km man - made 47 Bear Lake Idaho - Utah 109 sq mi 282 km natural 48 Lake Guntersville Alabama 108 sq mi 280 km man - made 49 Lake St. Francis New York - Ontario - Quebec 105 sq mi 272 km man - made 50 Wheeler Lake Alabama 105 sq mi 272 km man - made 51 Amistad Lake Coahuila - Texas 102 sq mi 264 km man - made 52 Klamath Lake Oregon 96 sq mi 249 km natural 53 Lake Moultrie South Carolina 94 sq mi 243 km man - made 54 Lake Winnibigoshish Minnesota 91 sq mi 236 km natural 55 Lake Barkley Kentucky - Tennessee 91 sq mi 236 km man - made 56 Lake Sharpe South Dakota 89 sq mi 231 km man - made 57 American Falls Reservoir Idaho 88 sq mi 228 km man - made 58 Lake Hartwell Georgia - South Carolina 87 sq mi 225 km man - made 59 Truman Reservoir Missouri 87 sq mi 225 km man - made 60 Lake of the Ozarks Missouri 86 sq mi 223 km man - made 61 Oneida Lake New York 80 sq mi 207 km natural 62 Lake Cumberland Kentucky 79 sq mi 205 km man - made 63 Kerr Lake North Carolina - Virginia 78 sq mi 202 km man - made 64 Calcasieu Lake Louisiana 77 sq mi 199 km natural 65 Lake Murray South Carolina 75 sq mi 194 km man - made 66 Grand Lake o ' the Cherokees Oklahoma 73 sq mi 189 km man - made 67 Lake Winnipesaukee New Hampshire 71 sq mi 184 km natural 68 Bull Shoals Lake Arkansas - Missouri 71 sq mi 184 km man - made 69 Walter F. George Lake Alabama - Georgia 71 sq mi 184 km man - made 70 Lake Martin Alabama 69 sq mi 179 km man - made 71 Clear Lake California 68 sq mi 176 km natural 72 Robert S. Kerr Lake Oklahoma 68 sq mi 176 km man - made 73 Seneca Lake New York 68 sq mi 176 km natural 74 Pickwick Lake Alabama - Mississippi 67 sq mi 174 km man - made 75 Table Rock Lake Arkansas - Missouri 67 sq mi 174 km man - made 76 Cayuga Lake New York 67 sq mi 174 km natural 77 Flaming Gorge Reservoir Utah - Wyoming 66 sq mi 171 km man - made 78 Lake Vermilion Minnesota 63 sq mi 163 km natural 79 Lake Ouachita Arkansas 63 sq mi 163 km man - made 80 Lake Mattamuskeet North Carolina 63 sq mi 163 km natural 81 Watts Bar Lake Tennessee 61 sq mi 158 km man - made 82 Lake Wallula Oregon - Washington 61 sq mi 158 km man - made 83 Lake Lanier Georgia 59 sq mi 153 km man - made 84 Lake Seminole Florida - Georgia 58 sq mi 150 km man - made 85 Lake Tawakoni Texas 57 sq mi 148 km man - made 86 Elephant Butte Lake New Mexico 57 sq mi 148 km man - made 87 Chickamauga Lake Tennessee 57 sq mi 148 km man - made 88 Grenada Lake Mississippi 55 sq mi 142 km man - made 89 Lake Kissimmee Florida 55 sq mi 142 km natural 90 Lake Dardanelle Arkansas 54 sq mi 140 km man - made 91 Norris Lake Tennessee 53 sq mi 137 km man - made 92 Canyon Ferry Lake Montana 53 sq mi 137 km man - made 93 Lake Chelan Washington 52 sq mi 135 km natural 94 Cedar Creek Lake Texas 51 sq mi 132 km man - made 95 Lake Norman North Carolina 51 sq mi 132 km man - made 96 Sardis Lake Mississippi 51 sq mi 132 km man - made 97 Walker Lake ( Nevada ) Nevada 50 sq mi 129 km natural 98 Lake McConaughy Nebraska 56 sq mi 145 km man - made 99 Lake George New York 56 sq mi 145 km natural 100 Beaver Lake Arkansas 44.06 sq mi 114 km man - made Notes Jump up ^ One of the Great Lakes ; considered the largest lake in the United States by the National Atlas of the United States. Jump up ^ Although it forms one a single hydrological unit with Lake Michigan ( their surfaces are at the same elevation and the water flows in either direction in the channel separating them ), they are generally considered distinct lakes, and Lake Michigan is generally considered the largest lake entirely within the United States, as Lake Huron and Lake Superior are binational ( shared with Canada ). Jump up ^ One of the Great Lakes. Jump up ^ One of the Great Lakes. Jump up ^ One of the Great Lakes. Jump up ^ If Lake Michigan and Lake Huron are considered the same lake, the largest lake entirely within the United States. Also the largest salt lake in the United States. Jump up ^ Largest man - made lake ( reservoir ) by surface area in the United States. Jump up ^ Largest lake in the South Jump up ^ Often considered an estuary rather than a lake Jump up ^ includes both Upper and Lower Red Lake Jump up ^ highly variable in area Jump up ^ The area of Devils Lake was taken from the summer 2011 record peak of 1,454.4 ft ( 443.3 m ) MSL. Devils Lake has experienced severe flooding and has risen more than 31 feet ( 9.4 m ) since 1993. Area has increased by 4 times. Jump up ^ Devils Lake Elevation - Volume Table Jump up ^ USGS Devils Lake Flood History Jump up ^ National Weather Service Advanced Hydrologic Prediction Service ( NWS AHPS ) for Devils Lake at Creel Bay Jump up ^ Part of St. Lawrence Seaway See also List of lakes of the United States List of largest lakes of the United States by volume External links List from the National Atlas of the United States Retrieved from `` https://en.wikipedia.org/w/index.php?title=List_of_largest_lakes_of_the_United_States_by_area&oldid=817876895 '' Categories : Lists of lakes of the United States United States - related lists of superlatives Lists by area Talk About Wikipedia Español Русский Edit links This page was last edited on 31 December 2017, at 02 : 42. About Wikipedia

Question: what is the largest man made lake in the us
Answer: Lake Oahe; Lake Oahe