Discover the Largest Lake in Each of the 50 States

Written by Oak Simmons
Published: December 24, 2023
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This article explores the largest lake in each of the 50 states by surface area. Before we get started, here are a few notes about this list. First, this is a list of the largest lakes located entirely in a single state, but most of the largest lakes in the United States overall touch multiple states. For example, the Great Lakes touch multiple U.S. states and the Canadian province of Ontario. If the largest lake located entirely inside a state is not the largest lake touching that state, that state’s entry will also name the larger lake. Second, 62% of the lakes on this list are man-made reservoirs, and 18% are dammed natural lakes. Only 10% of the lakes on this list are natural freshwater lakes that have not been dammed. Finally, the list is in alphabetical order by state name. Let’s dive into the largest lakes in each state!

1. Alabama: Lake Guntersville

High scenic vista of Lake Guntersville State Park with blue skies and fluffy clouds

At 108 square miles, Lake Guntersville is the largest lake in Alabama.

©Dharris324/Shutterstock.com

Lake Guntersville is a man-made reservoir on the Tennessee River.

2. Alaska: Iliamna Lake

At 1,014 square miles, Iliamna Lake is the largest lake in Alaska.

©Nessie91/Shutterstock.com

Iliamna Lake is a natural freshwater lake on the Alaska Peninsula. It is the seventh-largest lake in the United States by surface area and the largest lake contained in a single U.S. state.

3. Arizona: Theodore Roosevelt Lake

Roosevelt lake

At 34 square miles, Theodore Roosevelt Lake is the largest lake in Arizona.

©iStock.com/Christopher Harris

Theodore Roosevelt Lake is a man-made reservoir on the Salt River.

4. Arkansas: Lake Ouachita

Beautiful Scenic Lake View From Mountain Trail on Lake Ouachita Arkansas

At 63 square miles, Lake Ouachita is the largest lake in Arkansas.

©Kat Byrd I/Shutterstock.com

Lake Ouachita is a man-made reservoir on the Ouachita River. Arkansas also touches Bull Shoals Lake and Table Rock Lake.

5. California: Salton Sea

Aerial view of The Salton Sea, surrounded by the Imperial Valley and the Mojave Desert

At 343 square miles, the Salton Sea is the largest lake in California.

©Thomas Barrat/Shutterstock.com

The Salton Sea is a man-made saline lake in Southern California.

6. Colorado: John Martin Reservoir

john martin reservoir state park

At 18 square miles, John Martin Reservoir is the largest lake in Colorado.

©Jeffrey Beall / CC BY 3.0 - Original / License

John Martin Reservoir is a man-made reservoir on the Arkansas River.

7. Connecticut: Candlewood Lake

Candlewood Lake on a peaceful summer morning with boats docked and mountainside in background,New Fairfield,Connecticut.

At 8.4 square miles, Candlewood Lake is the largest lake in Connecticut.

©tmphoto98/Shutterstock.com

Candlewood Lake is a man-made reservoir on the Housatonic River.

8. Delaware: Lums Pond

Lums Pond

At 0.31 square miles, Lums Pond is the largest lake in Delaware.

©Yevgen Fedorenko/Shutterstock.com

Lums Pond is a man-made reservoir on the Delaware River.

9. Florida: Lake Okeechobee

Aerial Lake Okeechobee Florida

At 730 square miles, Lake Okeechobee is the largest lake in Florida.

©6381380/ via Getty Images

Lake Okeechobee is a natural freshwater lake in southern Florida. It is the tenth-largest lake in the United States.

10. Georgia: Lake Lanier

Fog rises on the water of Lake Lanier in Georgia at sunrise under a blue and orange sky; landscape

At 59 square miles, Lake Lanier is the largest lake in Georgia.

©Liz W Grogan/iStock via Getty Images

Lake Lanier is a man-made reservoir on the Chattahoochee River. Georgia also touches Lake Strom Thurmond, Lake Hartwell, and the Walter F. George Lake.

11. Hawaii: Waita Reservoir

Waita Reservoir Hawaii

At 1 square mile, Waita Reservoir is the largest lake in Hawaii.

©Alexandre G. ROSA/Shutterstock.com

Waita Reservoir is a man-made reservoir on the island of Kauai.

12. Idaho: Lake Pend Oreille

Lake Pend Oreille

At 148 square miles, Lake Pend Oreille is the largest lake in Idaho.

©Kirk Fisher/Shutterstock.com

Lake Pend Oreille is a natural, but dammed, freshwater lake in northern Idaho.

13. Illinois: Lake Carlyle

Carlyle Lake at Eldon Hazlet State Park Illinois

At 41 square miles, Lake Carlyle is the largest lake in Illinois.

©Jason Patrick Ross/Shutterstock.com

Lake Carlyle is a man-made reservoir on the Kaskaskia River. Illinois also touches Lake Michigan, the third-largest lake in the United States.

14. Indiana: Lake Monroe

Beach at Lake Monroe, Indiana

At 17 square miles, Lake Monroe is the largest lake in Indiana.

©Shannon VanB Photography/Shutterstock.com

Lake Monroe is a man-made reservoir on Salt Creek. Indiana also touches Lake Michigan.

15. Iowa: Lake Red Rock

Lake Red Rock

At 25 square miles, Red Rock Lake is the largest lake in Iowa.

©Rexjaymes/Shutterstock.com

Red Rock Lake is a man-made reservoir on the Des Moines River.

16. Kansas: Milford Lake

Milford Lake, Kansas

At 25 square miles, Milford Lake is the largest lake in Kansas.

©Acorns Resort / Flickr - Original / License

Milford Lake is a man-made reservoir on the Republican River.

17. Kentucky: Lake Cumberland

Lake Cumberland, Kentucky.

At 102 square miles, Lake Cumberland is the largest lake in Kentucky.

©TcHampel/Shutterstock.com

Lake Cumberland is a man-made reservoir on the Cumberland River. Kentucky also touches Kentucky Lake, the 25th-largest lake in the United States.

18. Louisiana: Lake Pontchartrain

Louisiana, Mandeville, Beach, Sun, Sunlight

At 631 square miles, Lake Pontchartrain is the largest lake in Louisiana.

©tyalexanderphotography/ via Getty Images

Lake Pontchartrain is a natural saline estuary in southeastern Louisiana. It is the 11th-largest lake in the United States by surface area.

19. Maine: Moosehead Lake

Moosehead Lake

At 117 square miles, Moosehead Lake is the largest lake in Maine.

©iStock.com/mountinez

Moosehead Lake is a natural, but dammed, freshwater lake.

20. Maryland: Deep Creek Lake

Channel, Deep creek Maryland Lake

At 6.1 square miles, Deep Creek Lake is the largest lake in Maryland.

©Infinitum Imagery/Shutterstock.com

Deep Creek Lake is a man-made reservoir on Deep Creek.

21. Massachusetts: Quabbin Reservoir

small piece of land jetting out in the quabbin reservoir

At 39 square miles, Quabbin Reservoir is the largest lake in Massachusetts.

©douglas324/iStock via Getty Images

Quabbin Reservoir is a man-made reservoir on the Swift River.

22. Michigan: Houghton Lake

Houghton Lake

At 31 square miles, Houghton Lake is the largest lake in Michigan.

©HoverSolutions/Shutterstock.com

Houghton Lake is a natural freshwater lake. Michigan also touches Lake Superior, Lake Huron, Lake Michigan, and Lake Erie. Lake Superior is the world’s largest lake by surface area.

23. Minnesota: Red Lake

Upper Red Lake, Minnesota - Ice Fishing in Minnesota

At 427 square miles, Red Lake is the largest lake in Minnesota.

©Dan Thornberg/Shutterstock.com

Red Lake is a natural freshwater lake. Minnesota also touches Lake Superior and Lake of the Woods, the first- and sixth-largest lakes in the United States by area.

24. Mississippi: Grenada Lake

At 55 square miles, Grenada Lake is the largest lake in Mississippi.

©jlbennett/Shutterstock.com

Grenada Lake is a man-made reservoir on the Yalobusha River. Mississippi also touches Pickwick Lake.

25. Missouri: Truman Reservoir

Truman Reservoir Missouri

At 87 square miles, Truman Reservoir is the largest lake in Missouri.

©iStock.com/StephenFB

Truman Reservoir is a man-made reservoir on the Osage River.

26. Montana: Fort Peck Lake

Fort Peck Lake Beach side

At 382 square miles, Fort Peck Lake is the largest lake in Montana.

©Beets Productions/Shutterstock.com

Fort Peck River is a man-made reservoir on the Missouri River.

27. Nebraska: Lake McConaughy

sandy beaches of Lake McConaughy, a reservoir on the North Platte River in Nebraska, early fall scenenry with sunflowers

At 56 square miles, Lake McConaughy is the largest lake in Nebraska.

©marekuliasz/Shutterstock.com

Lake McConaughy is a man-made reservoir on the North Platte River.

28. Nevada: Pyramid Lake

Pyramid Lake Nevada

At 188 square miles, Pyramid Lake is the largest lake in Nevada.

©iStock.com/gchapel

Pyramid Lake is a natural salt lake. Nevada also touches Lake Mead and Lake Tahoe.

29. New Hampshire: Lake Winnipesaukee

Lake Winnipesaukee

At 71 square miles, Lake Winnipesaukee is the largest lake in New Hampshire.

©iStock.com/Gerry Fagan

Lake Winnipesaukee is a natural, but dammed, freshwater lake.

30. New Jersey: Lake Hopatcong

Lake Hopatcong

At 4 square miles, Lake Hopatcong is the largest lake in New Jersey.

©iStock.com/andykazie

Lake Hopatcong is a natural, but dammed, freshwater lake.

31. New Mexico: Elephant Butte Lake

Elephant Butte Lake, New Mexico

At 57 square miles,

Elephant

Butte Lake is the largest lake in New Mexico.

©Judd Irish Bradley/Shutterstock.com

Elephant Butte Lake is a man-made reservoir on the Rio Grande.

32. New York: Oneida Lake

At 80 square miles, Oneida Lake is the largest lake in New York.

©iStock.com/Mirages-nl

Oneida Lake is a natural, but dammed, freshwater lake. New York also touches Lake Erie and Lake Ontario, the fourth- and fifth-largest lakes in the United States. Additionally, the state touches Lake Champlain and Lake St. Francis.

33. North Carolina: Lake Mattamuskeet

Mattamuskeet Lake

At 63 square miles, Lake Mattamuskeet is the largest lake in North Carolina.

©iStock.com/Rod Vamosi

Lake Mattamuskeet is a natural freshwater lake. North Carolina also touches Kerr Lake.

34. North Dakota: Lake Sakakawea

Government Bay at Lake Sakakawea

At 480 square miles, Lake Sakakawea is the largest lake in North Dakota.

©Life Atlas Photography/Shutterstock.com

Lake Sakakawea is a man-made reservoir on the Missouri River. North Dakota also touches Lake Oahe.

35. Ohio: Grand Lake St. Marys

Grand Lake St. Mary's dock at sunset

At 20 square miles, Grand Lake St. Marys is the largest lake in Ohio

©lkabbes/Shutterstock.com

Grand Lake St. Marys is a man-made reservoir. Ohio also touches Lake Erie.

36. Oklahoma: Eufaula Lake

Lake Eufaula, found in eastern Oklahoma, USA

At 158 square miles, Eufaula Lake is the largest lake in Oklahoma.

©JohnDSmith/Shutterstock.com

Eufala Lake is a man-made reservoir on the Canadian River.

37. Oregon: Klamath Lake

Upper Klamath Lake, shallow freshwater lake east of Cascade Range in south-central Oregon, USA , rich in fish, blue green algae, snow covered peak of Mt. McLoughlin in background.

At 96 square miles, Klamath Lake is the largest lake in Oregon.

©Gurcharan Singh/Shutterstock.com

Klamath Lake is a natural, but dammed, freshwater lake.

38. Pennsylvania: Raystown Lake

At 13 square miles, Raystown Lake is the largest lake in Pennsylvania.

©Christian Hinkle/Shutterstock.com

Raystown Lake is a man-made reservoir on the Juniata River.

39. Rhode Island: Ninigret Pond

Ninigret Pond

At 2.4 square miles, Ninigret Pond is the largest lake in Rhode Island.

©3,872 × 2,592 pixels, file size: 4.25 MB, MIME type: image/jpeg - Original / License

Ninigret Pond is a natural saltwater lagoon.

40. South Carolina: Lake Marion

Lake Marion

At 174 square miles, Lake Marion is the largest lake in South Carolina.

©Williampcrawfordjr / CC BY-SA 4.0 - Original / License

Lake Marion is a man-made reservoir on the Santee River.

41. South Dakota: Lake Francis Case

Lake Francis Case South Dakota

At 158 square miles, Lake Francis Case is the largest lake in South Dakota.

©Harry Weddington, U.S. Army Corps of Engineers / This image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. - Original

Lake Francis Case is a man-made reservoir on the Missouri River. South Dakota also touches Lake Oahe.

42. Tennessee: Watts Bar Lake

Watts Bar Lake Tennessee

At 62 square miles, Watts Bar Lake is the largest lake in Tennessee.

©BEN MOONEY/Shutterstock.com

Watts Bar Lake is a man-made reservoir on the Tennessee River. Tennessee also touches Kentucky Lake, Lake Barkley, and Pickwick Lake.

43. Texas: Sam Rayburn Reservoir

Sam Rayburn reservoir in Texas

At 179 square miles, Sam Rayburn Reservoir is the largest lake in Texas.

©Jordan Pitre/Shutterstock.com

Sam Rayburn Reservoir is a man-made reservoir on the Angelina River. Texas also touches the Toledo Bend Reservoir.

44. Utah: Great Salt Lake

Great Salt Lake Utah

At 1,700 square miles, the Great Salt Lake is the largest lake in Utah.

©iStock.com/beccarie

The Great Salt Lake is a natural saltwater lake.

45. Vermont: Lake Bomoseen

Lake Bomoseen Vermont

At 3.75 square miles, Lake Bomoseen is the largest lake in Vermont.

©iStock.com/EzumeImages

Lake Bomoseen is a natural, but dammed, freshwater lake. Vermont also touches Lake Champlain.

46. Virginia: Smith Mountain Lake

Smith Mountain Lake in Virginia

At 32 square miles, Smith Mountain Lake is the largest lake in Virginia.

©Erin HG/Shutterstock.com

Smith Mountain Lake is a man-made reservoir on the Roanoke River. Virginia also touches Kerr Lake.

47. Washington: Lake Roosevelt

General view of Lake Roosevelt in Washington State

At 125 square miles, Lake Roosevelt is the largest lake in Washington.

©iStock.com/MathewHayward

Lake Roosevelt is a man-made reservoir on the Columbia River.

48. West Virginia: Summersville Lake

“The Little Bahamas of the East” Summersville Lake West Virginia

At 4.35 square miles, Summersville Lake is the largest lake in West Virginia.

©Dylon Beamer/Shutterstock.com

Summersville Lake is a man-made reservoir on the Gauley River.

49. Wisconsin: Lake Winnebago

Sunset on the waters of Lake Winnebago

At 215 square miles, Lake Winnebago is the largest lake in Wisconsin.

©BlueBarronPhoto/Shutterstock.com

Lake WInnebago is a natural, but dammed, freshwater lake. Wisconsin also touches Lake Superior and Lake Michigan.

50. Wyoming: Yellowstone Lake

Yellowstone Lake

At 136 square miles, Yellowstone Lake is the largest lake in Wyoming.

©iStock.com/SeanXu

Yellowstone Lake is a natural freshwater lake.

Summary Table of the Largest Lake in Each of the 50 States

Rift Lake, salineLakeSurface AreaLake Type
AlabamaLake Guntersville108 sq miReservoir
AlaskaIliamna Lake1,014 sq miNatural, freshwater
ArizonaTheodore Roosevelt Lake34 sq miReservoir
ArkansasLake Ouachita63 sq miReservoir
CaliforniaSalton Sea343 sq miRift lake, saline
ColoradoJohn Martin Reservoir18 sq miReservoir
ConnecticutCandlewood Lake8.4 sq miReservoir
DelawareLums Pond0.31 sq miReservoir
FlordiaLake Okeechobee730 sq miNatural, freshwater
GeorgiaLake Lanier59 sq miReservoir
HawaiiWaita Reservoir1 sq miReservoir
IdahoLake Pend Oreille148 sq miNatural, freshwater, dammed
IllinoisLake Carlyle41 sq miReservoir
IndianaLake Monroe17 sq miReservoir
IowaLake Red Rock25 sq miReservoir
KansasMilford Lake25 sq miReservoir
KentuckyLake Cumberland102 sq miReservoir
LouisianaLake Pontchartrain631 sq miNatural, saline
MaineMoosehead Lake117 sq miNatural, freshwater, dammed
MarylandDeep Creek Lake6.1 sq miReservoir
MassachusettsQuabbin Reservoir39 sq miReservoir
MichiganHoughton Lake31 sq miNatural, freshwater, dammed
MinnesotaRed Lake427 sq miNatural, freshwater
MississippiGrenada Lake55 sq miReservoir
MissouriTruman Reservoir87 sq miReservoir
MontanaFort Peck Lake382 sq miReservoir
NebraskaLake McConaughy56 sq miReservoir
NevadaPyramid Lake188 sq miNatural, saline
New HampshireLake Winnipesaukee71 sq miNatural, freshwater, dammed
New JerseyLake Hopatcong4 sq miNatural, freshwater, dammed
New MexicoElephant Butte Lake57 sq miReservoir
New YorkOneida Lake80 sq miNatural, freshwater, dammed
North CarolinaLake Mattamuskeet63 sq miNatural, freshwater
North DakotaLake Sakakawea480 sq miReservoir
OhioGrand Lake St. Marys20 sq miReservoir
OklahomaEufaula Lake158 sq miReservoir
OregonKlamath Lake96 sq miNatural, freshwater, dammed
PennsylvaniaRaystown Lake13 sq miReservoir
Rhode IslandNinigret Pond2.4 sq miNatural, lagoon, saline
South CarolinaLake Marion174 sq miReservoir
South DakotaLake Francis Case158 sq miReservoir
TennesseeWatts Bar Lake62 sq miReservoir
TexasSam Rayburn Reservoir179 sq miReservoir
UtahGreat Salt Lake1700 sq miHypersaline
VermontLake Bomoseen3.75 sq miNatural, freshwater, dammed
VirginiaSmith Mountain Lake32 sq miReservoir
WashingtonLake Roosevelt125 sq miReservoir
West VirginiaSummersville Lake4.25 sq miReservoir
WisconsinLake Winnebago215 sq miNatural, freshwater, dammed
WyomingYellowstone Lake136 sq miNatural, freshwater

The photo featured at the top of this post is © Danita Delimont/Shutterstock.com


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About the Author

Oak Simmons is a writer at A-Z Animals primarily covering North American wildlife and geography. They graduated from the University of California, Santa Cruz in 2018 with a Bachelor of Science in Ecology and Evolutionary Biology. A resident of Washington state, Oak enjoys tracking mammals and watching birds.

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