Top 10 Biggest Lakes In The Us

The top 10 biggest lakes in the US showcase the nation's diverse geography, from vast freshwater expanses carved by ancient glaciers to deep, crystal‑clear basins nestled in mountain ranges. These lakes not only provide essential water resources and habitats but also offer recreation, cultural significance, and stunning scenery that draw millions of visitors each year. Understanding their size, origin, and unique characteristics helps appreciate why they rank among the largest bodies of water in the United States.

Introduction

When discussing the top 10 biggest lakes in the US, size is measured primarily by surface area, though volume and maximum depth also play important roles in distinguishing these natural wonders. The list includes both natural lakes and reservoirs created by damming rivers, reflecting the interplay of geological processes and human engineering. Below, we explore each lake’s ranking, key facts, and the scientific forces that shaped them.

Ranking the Largest Lakes

The following ordered list presents the lakes from largest to smallest by surface area. All figures are approximate and based on the most recent authoritative surveys.

1. Lake Superior – Minnesota, Wisconsin, Michigan, Ontario (Canada)
2. Lake Huron – Michigan, Ontario (Canada)
3. Lake Michigan – Wisconsin, Illinois, Indiana, Michigan
4. Lake Erie – Ohio, Pennsylvania, New York, Michigan, Ontario (Canada)
5. Lake Ontario – New York, Ontario (Canada)
6. Great Salt Lake – Utah
7. Lake of the Ozarks – Missouri
8. Lake Okeechobee – Florida
9. Lake Pontchartrain – Louisiana
10. Lake Iliamna – Alaska Note: While the Great Lakes dominate the top five, the remaining entries highlight significant inland and coastal lakes that rank impressively within the contiguous United States and Alaska.

Detailed Profiles of the Top 10 Lakes

Lake Superior - Surface area: ~31,700 sq mi (82,100 km²)

• Volume: ~2,900 cu mi (12,100 km³) – holds about 10 % of the world’s liquid fresh surface water
• Maximum depth: 1,332 ft (406 m)
• Location: Borders Minnesota, Wisconsin, Michigan, and the Canadian province of Ontario
• Highlights: Known for its rugged shoreline, numerous islands (including Isle Royale), and cold, clear waters that support lake trout and whitefish populations.

Lake Huron

• Surface area: ~23,000 sq mi (59,600 km²)
• Volume: ~850 cu mi (3,540 km³)
• Maximum depth: 750 ft (229 m)
• Location: Between Michigan’s Lower Peninsula and Ontario
• Highlights: Features the longest freshwater shoreline in the world, thanks to its many bays and the large Manitoulin Island.

Lake Michigan

• Surface area: ~22,400 sq mi (58,000 km²) - Volume: ~1,180 cu mi (4,920 km³)
• Maximum depth: 923 ft (281 m)
• Location: Entirely within the United States, touching Wisconsin, Illinois, Indiana, and Michigan
• Highlights: The only Great Lake wholly inside U.S. borders; famous for its sandy beaches, dunes, and vibrant fisheries.

Lake Erie

• Surface area: ~9,910 sq mi (25,700 km²)
• Volume: ~116 cu mi (483 km³) – the shallowest of the Great Lakes
• Maximum depth: 210 ft (64 m) - Location: Borders Ohio, Pennsylvania, New York, Michigan, and Ontario
• Highlights: Warmest of the Great Lakes, supporting abundant walleye and perch; prone to algal blooms due to nutrient runoff.

Lake Ontario

• Surface area: ~7,340 sq mi (19,000 km²)
• Volume: ~393 cu mi (1,640 km³)
• Maximum depth: 802 ft (244 m)
• Location: Between New York and Ontario
• Highlights: Serves as the outlet to the St. Lawrence River; its waters regulate flow for the entire Great Lakes system.

Great Salt Lake

• Surface area: ~1,700 sq mi (4,400 km²) – fluctuates greatly with climate
• Volume: Varies; typically around 4.5 cu mi (19 km³) when full
• Maximum depth: ~35 ft (11 m) at average levels
• Location: Northern Utah
• Highlights: The largest saltwater lake in the Western Hemisphere; its high salinity supports brine shrimp and unique microbial ecosystems.

Lake of the Ozarks

• Surface area: ~54 sq mi (140 km²)
• Volume: ~1.6 cu mi (6.7 km³)