Updated 9 Oct 2026, 2:01 am EDT. Get alerts for Iosco County lakes
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49 lakes · 10,458 acres · 13 with measured depth · 5 with a public launch · 14 stocked
Iosco County has 49 lakes of 10 acres or more, 40 of them named, covering 10,458 acres of water. The largest is Foote Dam Pond at 1,695 acres; the deepest measured is Loon Lake at 128 ft. Michigan DNR has surveyed the depth of 13 lakes here. Several names repeat: 2 lakes are called Mud Lake.
Lake outlines: Michigan hydrography (lakes of 10 acres or more). Depths: Michigan DNR lake surveys, fetched 7 Oct 2026. County line: U.S. Census TIGER. Not for navigation.
15 lakes in Iosco County cover 100 acres or more. The 12 largest are listed here; the full register of 40 named lakes follows.
| Lake | Acres | Deepest | Clarity | Launches | Last stocked |
|---|---|---|---|---|---|
| Foote Dam Pond | 1,695 | about 40 ft (est.) | 15 ft | ||
| Cooke Dam Pond | 1,635 | 2025 | |||
| Tawas Lake | 1,616 | about 5 ft (est.) | 4 ft | 1 | |
| Van Etten Lake | 1,409 | about 30 ft (est.) | 5 ft | 1 | 2022 |
| Loud Dam Pond | 591 | 2019 | |||
| Long Lake | 486 | 62 ft | 14 ft | 1 | 2026 |
| Loon Lake | 416 | 128 ft | 15 ft | 2026 | |
| Sand Lake | 245 | 25 ft | 10 ft | 2025 | |
| Five Channels Dam Pond | 223 | ||||
| Indian Lake | 214 | about 15 ft (est.) | 7 ft | ||
| Lake Solitude | 203 | about 25 ft (est.) | 4 ft | ||
| West Londo Lake | 198 | 16 ft | 12 ft | 2020 |
| Lake | Acres | Deepest | Clarity | Launches | Last stocked |
|---|---|---|---|---|---|
| Foote Dam Pond | 1,695 | about 40 ft (est.) | 15 ft | ||
| Cooke Dam Pond | 1,635 | 2025 | |||
| Tawas Lake | 1,616 | about 5 ft (est.) | 4 ft | 1 | |
| Van Etten Lake | 1,409 | about 30 ft (est.) | 5 ft | 1 | 2022 |
| Loud Dam Pond | 591 | 2019 | |||
| Long Lake | 486 | 62 ft | 14 ft | 1 | 2026 |
| Loon Lake | 416 | 128 ft | 15 ft | 2026 | |
| Sand Lake | 245 | 25 ft | 10 ft | 2025 | |
| Five Channels Dam Pond | 223 | ||||
| Indian Lake | 214 | about 15 ft (est.) | 7 ft | ||
| Lake Solitude | 203 | about 25 ft (est.) | 4 ft | ||
| West Londo Lake | 198 | 16 ft | 12 ft | 2020 | |
| Londo Lake | 179 | about 10 ft (est.) | 10 ft | 1 | 1982 |
| Cedar Lake | 142 | about 25 ft (est.) | 8 ft | 2024 | |
| Jose Lake | 122 | 25 ft | 14 ft | 2025 | |
| Round Lake | 91 | 15 ft | 8 ft | 2025 | |
| Island Lake | 89 | about 25 ft (est.) | 10 ft | ||
| Little Long Lake | 87 | about 45 ft (est.) | 14 ft | 1988 | |
| Chain Lakes (west) | 84 | 18 ft | 4 ft | ||
| Little Island Lake | 57 | 9 ft | 9 ft | ||
| Bass Lake | 48 | 22 ft | 11 ft | ||
| Floyd Lake | 41 | about 15 ft (est.) | 11 ft | 1 | 1995 |
| Welcome Lake | 31 | 30 ft | 15 ft | ||
| Hale Lake | 31 | 20 ft | 4 ft | ||
| Chain Lakes (east) | 31 | about 25 ft (est.) | 3 ft | ||
| Marlbed Lake | 28 | 30 ft | 12 ft | ||
| Mud Lake, Plainfield Township | 26 | about 25 ft (est.) | 8 ft | ||
| Simpson Lake | 24 | about 30 ft (est.) | 7 ft | ||
| River Lakes | 22 | 30 ft | |||
| Catherine Lake | 19 | about 30 ft (est.) | 10 ft | ||
| Stuart Lake | 19 | ||||
| Mud Lake, Plainfield Township | 17 | about 30 ft (est.) | 10 ft | ||
| Spencer Lake | 16 | about 20 ft (est.) | 11 ft | ||
| Grassy Lake | 15 | about 20 ft (est.) | 2 ft | ||
| Perch Lake | 15 | 8 ft | |||
| Guilford Lake | 15 | about 25 ft (est.) | 7 ft | ||
| Duell Lake | 15 | about 20 ft (est.) | 3 ft | ||
| Chappell Lake | 15 | ||||
| Allen Lake | 13 | 7 ft | |||
| Buck Creek Pond | 11 | 4 ft | 2000 |
Acres: Michigan hydrography. Deepest: Michigan DNR survey; "est." marks an older Michigan EGLE estimate, rounded to 5 ft. Clarity: Michigan EGLE satellite averages 2018–23. Launches: Michigan DNR. Stocking: Michigan DNR Fisheries. Fetched 7–8 Oct 2026.
2 lakes in Iosco County are 50 ft deep or more by Michigan DNR survey. Loon Lake is the deepest at 128 ft, then Long Lake (62 ft), Welcome Lake (30 ft) and Marlbed Lake (30 ft). The depth of the other 27 named lakes has not been surveyed; where an older state estimate exists, the register gives it as an estimate.
Michigan DNR lake survey deep points, fetched 7 Oct 2026.
Clarity is the depth at which a black-and-white Secchi disk disappears from view. Across 34 lakes with satellite readings, the middle value in Iosco County is 9 ft. The clearest is Welcome Lake at about 15 ft, then Loon Lake (15 ft), Foote Dam Pond (15 ft) and Jose Lake (14 ft). The least clear is Grassy Lake at about 2 ft. Clarity is not a test for bacteria or algae toxins.
Michigan EGLE satellite-derived Secchi depth, averages 2018–23, fetched 7 Oct 2026.
Michigan DNR lists 5 public access sites on 5 lakes in Iosco County; 4 require a Recreation Passport. The other 35 named lakes have no public access site listed by Michigan DNR.
| Lake | Site | Facilities |
|---|---|---|
| Tawas Lake | Tawas Lake | 1 ramp lane · 10 trailer spaces · vault toilet · Recreation Passport required |
| Van Etten Lake | Van Etten Lake SFCG | 1 ramp lane · 6 trailer spaces · 2 car spaces · vault toilet · Recreation Passport required |
| Long Lake | Long Lake | 2 ramp lanes · 38 trailer spaces · vault toilet |
| Londo Lake | Londo Lake | 1 ramp lane · 3 trailer spaces · accessible restroom · Recreation Passport required |
| Floyd Lake | Floyd Lake | 1 ramp lane · 4 trailer spaces · 2 car spaces · vault toilet · Recreation Passport required |
Michigan DNR boating access sites, fetched 8 Oct 2026.
Michigan DNR has stocked 14 lakes in Iosco County 225 times since 1979. Walleye went into 10 lakes: Cedar Lake, Cooke Dam Pond, Floyd Lake, Jose Lake, Little Long Lake, Long Lake, Loon Lake, Round Lake, Sand Lake and Van Etten Lake. The most recent stocking was 21,792 walleye in Loon Lake on 23 June 2026. Rivers and smaller waters stocked in the county: Au Sable River, Chain Lakes, Dead Creek, East Br Au Gres River, Five Channels Impoundment, Gray Creek, Lake Huron and Silver Creek and 2 more.
| Species | Lakes | Where |
|---|---|---|
| Walleye | 10 | Cedar Lake, Cooke Dam Pond, Floyd Lake, Jose Lake, Little Long Lake and Long Lake and 4 more |
| Yellow perch | 4 | Jose Lake, Little Long Lake, Van Etten Lake and West Londo Lake |
| Tiger muskellunge | 4 | Cedar Lake, Cooke Dam Pond, Long Lake and Van Etten Lake |
| Black crappie | 3 | Jose Lake, Long Lake and West Londo Lake |
| Muskellunge | 2 | Cooke Dam Pond and Loud Dam Pond |
| Bluegill | 2 | Jose Lake and West Londo Lake |
| Largemouth bass | 2 | Little Long Lake and Londo Lake |
| Channel catfish | 1 | Long Lake |
| Redear sunfish | 1 | Cedar Lake |
| Hybrid sunfish | 1 | Cedar Lake |
| Brook trout | 1 | Buck Creek Pond |
| Chinook salmon | 1 | Van Etten Lake |
| Rainbow trout | 1 | Loon Lake |
2026: 2 stockings, 51,512 fish in 2 lakes.
Michigan DNR Fisheries stocking records, fetched 8 Oct 2026. Each stocking is placed by its survey section, so lakes that share a name are kept apart. How we measure
CAUTION Blooms were reported, not tested, on Van Etten Lake. Check current advisories before swimming.
Michigan DHHS has records for 2 lakes in Iosco County: water samples tested for the toxin microcystin, and bloom reports from the public that may not have been tested. 0 lakes have measured at or above the EPA swimming guideline of 8 ppb at least once.
Michigan DHHS harmful algal bloom records, fetched 7 Oct 2026; U.S. EPA 2019 recreational criteria. Beach E. coli testing is not yet covered here.
49 lakes of 10 acres or more, 40 of them named, in Michigan's hydrography layer. Smaller ponds are not counted.
Foote Dam Pond, at 1,695 acres.
Loon Lake, 128 ft at its deepest point by Michigan DNR survey.
Welcome Lake, with an average Secchi depth of about 15 ft (satellite readings, 2018–23).
Michigan DNR lists public access sites on Tawas Lake, Van Etten Lake, Long Lake, Londo Lake and Floyd Lake.
Cedar Lake, Cooke Dam Pond, Floyd Lake, Jose Lake, Little Long Lake, Long Lake, Loon Lake, Round Lake, Sand Lake and Van Etten Lake, by Michigan DNR stocking records.
Michigan DHHS has algae records for 2 lakes here; 0 measured at or above the EPA swimming guideline of 8 ppb at least once.