Michigan has 56 lakes named Long Lake of 10 acres or more, in 40 counties. The largest is in Alpena County (5,342 acres); the deepest measured, in Crystal Falls Township, Iron County (105 ft). 21 have been stocked by the DNR and 21 have a public launch.
How they differ: The clearest is in Grand Traverse County, about 18 ft of visibility in the 2023 satellite estimate; the most recently stocked is in Commerce Township, Oakland County (17 Jun 2026); 21 have a public launch listed; the other 35 have no public access site in the DNR list; 2 have a full page here with a depth map, linked below.
Circles sized by area and shaded by deepest measured point. Michigan DNR lake polygons and depth surveys.
Largest first. The nearest town is the closest place in the Census list to the middle of the lake.
| Lake | Near | Acres | Deepest | Clarity | Stockings | Launches |
|---|---|---|---|---|---|---|
| Long LakeAlpena County | 9 mi north of Alpena | 5,342 | 25 ft | 9 ft | 12 times, last 2025 | 2 |
| Long LakeGrand Traverse County, Long Lake Township | 5 mi east of Lake Ann | 2,911 | 88 ft | 18 ft | 8 times, last 1995 | 1 |
| Long LakeKalamazoo County, Pavilion Township | 4 mi east of Portage | 500 | 57 ft | 9 ft | 1 | |
| Long LakeIosco County, Plainfield Township | 13 mi north of Whittemore | 486 | 62 ft | 14 ft | 37 times, last 2026 | 1 |
| Long LakeCheboygan County, Aloha Township | 8 mi southeast of Cheboygan | 379 | 61 ft | 16 ft | 28 times, last 2026 | 1 |
| Long LakeIonia County, Orleans Township | 6 mi east of Belding | 357 | 57 ft | 8 ft | 3 times, last 1990 | 1 |
| Long LakeBenzie County, Lake Township | 5 mi northeast of Frankfort | 327 | about 30 ft (est.) | 5 ft | 13 times, last 2019 | |
| Long LakeMontmorency County, Montmorency Township | 6 mi northwest of Hillman | 279 | 84 ft | 11 ft | 34 times, last 2026 | 1 |
| Long LakeHope Township, Barry County, Hope Township | 8 mi southwest of Hastings | 262 | about 40 ft (est.) | 13 ft | 17 times, last 2025 | 1 |
| Long LakePorter Township, Cass County, Porter Township | 9 mi west of White Pigeon | 241 | 42 ft | 13 ft | 5 times, last 2021 | |
| Long LakeColon Township, St. Joseph County, Colon Township | 3 mi south of Colon | 234 | 32 ft | 5 ft | 1 | |
| Long LakeReading Township, Hillsdale County, Reading Township | 3 mi northwest of Reading | 213 | 9 times, last 2026 | 1 | ||
| Long LakeClare County, Frost Township | 6 mi north of Harrison | 211 | 76 ft | 13 ft | 21 times, last 2019 | 1 |
| Long LakeFabius Township, St. Joseph County, Fabius Township | 6 mi southeast of Marcellus | 208 | 41 ft | 14 ft | 1 | |
| Long LakeArcadia Township, Lapeer County, Arcadia Township | 7 mi northeast of Lapeer | 205 | 27 ft | 9 ft | 20 times, last 2017 | 1 |
| Long LakeLivingston County, Hartland Township | 7 mi north of Brighton | 178 | about 55 ft (est.) | 11 ft | ||
| Long LakeGogebic County, Watersmeet Township | 9 mi southwest of Watersmeet | 172 | 60 ft | 10 ft | 4 times, last 2015 | |
| Long LakeCommerce Township, Oakland County, Commerce Township | 4 mi north of Wolverine Lake | 166 | 12 ft | 8 ft | 22 times, last 2026 | 1 |
| Long LakeWexford County, Haring Township | 6 mi south of Manton | 165 | about 5 ft (est.) | 7 ft | 1 | |
| Long LakeHillsdale County | 2 mi south of Montgomery | 155 | 35 ft | 7 ft | 1 | |
| Long LakeYankee Springs Township, Barry County, Yankee Springs Township | 7 mi south of Middleville | 147 | 3 ft | 3 ft | 1 | |
| Long LakeMackinac County, Newton Township | 17 mi west of Naubinway | 128 | about 20 ft (est.) | 6 ft | ||
| Long LakeHiawatha Township, Schoolcraft County, Hiawatha Township | 15 mi east of Munising | 117 | 15 ft | 7 ft | ||
| Long LakeMason County, Branch Township | 6 mi east of Custer | 107 | 50 ft | 13 ft | 8 times, last 1995 | |
| Long LakeOrion Township, Oakland County, Orion Township | at Lake Orion | 104 | 50 ft | 15 ft | ||
| Long LakeCrystal Falls Township, Iron County, Crystal Falls Township | 11 mi southwest of Three Lakes | 80 | about 25 ft (est.) | 6 ft | ||
| Long LakeJohnstown Township, Barry County, Johnstown Township | 10 mi north of Springfield | 75 | 40 ft | 15 ft | 7 times, last 2004 | 1 |
| Long LakeCalvin Township, Cass County, Calvin Township | 5 mi south of Vandalia | 69 | about 40 ft (est.) | 14 ft | ||
| Long LakeKalkaska County, Springfield Township | 2 mi east of Fife Lake | 67 | 20 ft | 11 ft | ||
| Long LakeMenominee County, Lake Township | 11 mi west of Stephenson | 66 | 44 ft | 10 ft | ||
| Long LakeMissaukee County, Caldwell Township | 3 mi northwest of Lake City | 66 | about 15 ft (est.) | 11 ft | 1 | |
| Long LakeMecosta County, Chippewa Township | 8 mi west of Barryton | 63 | 18 ft | 12 ft | ||
| Long LakeCrystal Falls Township, Iron County, Crystal Falls Township | 6 mi northwest of Alpha | 60 | 105 ft | 14 ft | 48 times, last 2018 | 1 |
| Long LakeColumbus Township, Luce County, Columbus Township | 16 mi northwest of Newberry | 56 | about 70 ft (est.) | 2 ft | 5 times, last 1982 | |
| Long LakeKent County, Solon Township | 5 mi northeast of Sparta | 54 | 27 ft | 12 ft | 9 times, last 2005 | |
| Long LakeWashtenaw County, Lyndon Township | 4 mi northwest of Chelsea | 50 | 30 ft | 12 ft | ||
| Long LakeHumboldt Township, Marquette County, Humboldt Township | 14 mi southwest of Ishpeming | 47 | ||||
| Long LakeMcMillan Township, Luce County, McMillan Township | 18 mi northwest of Newberry | 45 | 71 ft | 7 ft | 7 times, last 1985 | |
| Long LakeBaraga County, Spurr Township | 14 mi southeast of L'Anse | 43 | about 20 ft (est.) | 6 ft | ||
| Long LakeCalhoun County, Fredonia Township | 5 mi south of Marshall | 37 | about 30 ft (est.) | 8 ft | ||
| Long LakeSpringfield Township, Oakland County, Springfield Township | 4 mi southeast of Holly | 36 | about 30 ft (est.) | 11 ft | ||
| Long LakeAttica Township, Lapeer County, Attica Township | 4 mi west of Imlay City | 31 | about 30 ft (est.) | 13 ft | ||
| Long LakeTilden Township, Marquette County, Tilden Township | 4 mi south of Ishpeming | 29 | about 30 ft (est.) | 13 ft | ||
| Long LakeDickinson County, Sagola Township | 14 mi northeast of Crystal Falls | 22 | about 25 ft (est.) | 9 ft | ||
| Long LakeOntwa Township, Cass County, Ontwa Township | at Edwardsburg | 22 | ||||
| Long LakeIsabella County, Sherman Township | 5 mi southeast of Barryton | 21 | about 25 ft (est.) | 8 ft | ||
| Long LakeKeweenaw County, Eagle Harbor Township | 14 mi northeast of Ahmeek | 21 | about 15 ft (est.) | |||
| Long LakeSeney Township, Schoolcraft County, Seney Township | 13 mi southwest of Grand Marais | 21 | about 35 ft (est.) | 5 ft | ||
| Long LakeOgemaw County, Mills Township | 5 mi northwest of Prescott | 20 | 31 ft | 6 ft | 1 | |
| Long LakeElba Township, Lapeer County, Elba Township | 4 mi southwest of Lapeer | 19 | about 35 ft (est.) | 4 ft | ||
| Long LakeOtsego County, Bagley Township | 5 mi southeast of Gaylord | 17 | about 25 ft (est.) | 6 ft | ||
| Long LakeBaltimore Township, Barry County, Baltimore Township | 5 mi west of Nashville | 15 | 9 ft | |||
| Long LakePresque Isle County, Allis Township | 9 mi south of Onaway | 14 | 5 ft | 2 ft | 18 times, last 2023 | |
| Long LakeBrandon Township, Oakland County, Brandon Township | 3 mi south of Ortonville | 13 | about 25 ft (est.) | 11 ft | ||
| Long LakeVan Buren County, Pine Grove Township | 4 mi east of Gobles | 12 | ||||
| Long LakeOceana County, Claybanks Township | 7 mi west of Rothbury | 12 |
Depth: Michigan DNR survey soundings; "about" figures are older Michigan EGLE estimates. Clarity: Michigan EGLE satellite estimate, 2023 average. Stockings: Michigan DNR Fisheries. Launches: Michigan DNR public access sites. Towns: US Census Bureau 2024 Gazetteer. How we measure