Updated 9 Oct 2026, 2:48 am EDT. Get alerts for Washtenaw County lakes
National Weather Service; National Interagency Fire Center; U.S. EPA CyAN satellite; Michigan DHHS; Michigan DNR. Weather, warnings, fires and satellite refresh when you open the page (checked at most hourly).
116 lakes · 8,584 acres · 45 with measured depth · 20 with a public launch · 20 stocked
Washtenaw County has 116 lakes of 10 acres or more, 84 of them named, covering 8,584 acres of water. The largest is Ford Lake at 958 acres; the deepest measured is South Lake at 88 ft. Michigan DNR has surveyed the depth of 45 lakes here. Several names repeat: 2 lakes are called Silver Lake, 2 lakes are called Joslin Lake and 2 lakes are called Crooked 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. Drawn square to the county's survey lines, which run 1° off true north; the arrow points to true north. Not for navigation.
22 lakes in Washtenaw County cover 100 acres or more. The 12 largest are listed here; the full register of 84 named lakes follows.
| Lake | Acres | Deepest | Clarity | Launches | Last stocked |
|---|---|---|---|---|---|
| Ford Lake | 958 | 30 ft | 5 ft | 2006 | |
| Portage Lake | 641 | about 85 ft (est.) | 11 ft | 1 | 2026 |
| Whitmore Lake | 576 | 69 ft | 9 ft | 1 | 2026 |
| Winnewana Lake | 282 | about 10 ft (est.) | 9 ft | 1 | 1986 |
| Fourmile Lake | 258 | 18 ft | 3 ft | 1 | 1993 |
| Halfmoon Lake | 241 | 87 ft | 9 ft | 1 | 1997 |
| North Lake | 224 | 58 ft | 13 ft | 1 | 1993 |
| Silver Lake, Dexter Township | 222 | 47 ft | 14 ft | 1995 | |
| South Lake | 202 | 88 ft | 6 ft | 1 | 1997 |
| Cavanaugh Lake | 197 | 19 ft | 9 ft | 2011 | |
| Geddes Pond | 195 | 10 ft | 9 ft | 2015 | |
| Joslin Lake, Lyndon Township | 194 | 20 ft | 6 ft | 1 | 1997 |
| Lake | Acres | Deepest | Clarity | Launches | Last stocked |
|---|---|---|---|---|---|
| Ford Lake | 958 | 30 ft | 5 ft | 2006 | |
| Portage Lake | 641 | about 85 ft (est.) | 11 ft | 1 | 2026 |
| Whitmore Lake | 576 | 69 ft | 9 ft | 1 | 2026 |
| Winnewana Lake | 282 | about 10 ft (est.) | 9 ft | 1 | 1986 |
| Fourmile Lake | 258 | 18 ft | 3 ft | 1 | 1993 |
| Halfmoon Lake | 241 | 87 ft | 9 ft | 1 | 1997 |
| North Lake | 224 | 58 ft | 13 ft | 1 | 1993 |
| Silver Lake, Dexter Township | 222 | 47 ft | 14 ft | 1995 | |
| South Lake | 202 | 88 ft | 6 ft | 1 | 1997 |
| Cavanaugh Lake | 197 | 19 ft | 9 ft | 2011 | |
| Geddes Pond | 195 | 10 ft | 9 ft | 2015 | |
| Joslin Lake, Lyndon Township | 194 | 20 ft | 6 ft | 1 | 1997 |
| Pleasant Lake | 193 | 36 ft | 7 ft | ||
| Barton Pond | 192 | 30 ft | 9 ft | 2012 | |
| Independence Lake | 190 | 30 ft | 10 ft | 1993 | |
| Sugarloaf Lake | 177 | 10 ft | 6 ft | 1 | |
| West Lake | 157 | 6 ft | 4 ft | ||
| Iron Mill Pond | 155 | 42 ft | 11 ft | ||
| Mill Lake | 130 | 25 ft | 7 ft | 1 | 1993 |
| Bruin Lake | 130 | 48 ft | 8 ft | 1 | 1993 |
| Crooked Lake, Sylvan Township | 113 | 20 ft | 13 ft | 1 | |
| Huron River, Superior Township | 100 | 20 ft | |||
| Island Lake | 99 | 19 ft | 12 ft | ||
| Little Portage Lake | 92 | 42 ft | 10 ft | ||
| Green Lake | 89 | 11 ft | 11 ft | 1 | |
| Horseshoe Lake | 88 | 30 ft | |||
| Argo Pond | 84 | 10 ft | 2000 | ||
| Wildwood Lake | 78 | about 30 ft (est.) | 11 ft | ||
| Crooked Lake, Dexter Township | 75 | about 30 ft (est.) | 13 ft | 1 | |
| Mud Lake | 73 | 6 ft | 1 | ||
| Blind Lake | 71 | 80 ft | 7 ft | 1985 | |
| Sutton Lake | 69 | about 30 ft (est.) | 5 ft | ||
| Clinton | 67 | about 25 ft (est.) | |||
| Cedar Lake | 65 | 27 ft | 12 ft | 1 | |
| Columbia Lake | 64 | 50 ft | 7 ft | ||
| Huron River, Ypsilanti | 54 | 15 ft | |||
| Sharon Hollow Lake | 54 | about 25 ft (est.) | |||
| Ellsworth Lake | 54 | 25 ft | |||
| Twin Lakes | 52 | ||||
| Long Lake | 50 | 30 ft | 12 ft | ||
| Gorman Lake | 49 | 31 ft | 7 ft | 2009 | |
| Joslin Lake, Bridgewater Township | 48 | about 30 ft (est.) | 11 ft | ||
| Manchester Lake | 43 | ||||
| Lehman Lake | 42 | about 20 ft (est.) | 4 ft | ||
| Riker Lake | 42 | about 25 ft (est.) | 2 ft | ||
| Cassidy Lake | 41 | about 30 ft (est.) | 3 ft | ||
| Wild Goose Lake | 39 | 58 ft | 16 ft | ||
| Lower Lake | 39 | about 30 ft (est.) | 12 ft | ||
| Tobin Lake | 39 | about 25 ft (est.) | 5 ft | ||
| Parks Lake | 37 | 17 ft | 13 ft | ||
| Arnold Lake | 37 | about 35 ft (est.) | 12 ft | ||
| Pierce Lake | 32 | about 25 ft (est.) | 7 ft | ||
| Spruce Lake | 24 | about 20 ft (est.) | |||
| Saline Mill Pond | 24 | ||||
| Dexter Mill Pond | 23 | 1 | |||
| Goose Lake | 22 | about 15 ft (est.) | 5 ft | ||
| Lawton Lake | 22 | about 30 ft (est.) | 8 ft | ||
| Sullivan Lake | 21 | 22 ft | 15 ft | 1 | |
| Pickerel Lake | 20 | 56 ft | 14 ft | 1 | 2002 |
| Burkhart Lake | 19 | about 30 ft (est.) | 15 ft | ||
| Nordman Lake | 19 | about 20 ft (est.) | 9 ft | ||
| Boyce Lake | 19 | about 20 ft (est.) | 11 ft | ||
| Clarks Lake | 19 | about 25 ft (est.) | 12 ft | ||
| Deppmann Lake | 19 | about 25 ft (est.) | 6 ft | ||
| Spring Lake | 18 | about 25 ft (est.) | 11 ft | ||
| Frain Lake | 17 | 25 ft | 6 ft | ||
| Murray Lake | 17 | 40 ft | 7 ft | ||
| Winnewanna Lake | 17 | 12 ft | 11 ft | ||
| Doyle Lake | 17 | 10 ft | 11 ft | 1 | |
| Schasser Lake | 16 | about 25 ft (est.) | 5 ft | ||
| Lake Angelique | 15 | about 20 ft (est.) | 7 ft | ||
| Half Moon Lake | 15 | 11 ft | |||
| Silver Lake, Freedom Township | 15 | 65 ft | 16 ft | ||
| Snyder Lake | 14 | 29 ft | 14 ft | ||
| Truman Lake | 12 | 6 ft | |||
| Losee Lake | 12 | 35 ft | 16 ft | ||
| Green Oak Lake | 12 | 8 ft | |||
| Avery Lake | 12 | ||||
| Saline Fisheries Resea | 12 | ||||
| Ella Lee Lake | 12 | 2 ft | |||
| Hudson Lake | 11 | ||||
| Mill Pond | 11 | ||||
| Twamley Lake | 11 | 18 ft | 14 ft | ||
| Cranberry Lake | 11 | 11 ft |
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.
3 lakes in Washtenaw County are 75 ft deep or more by Michigan DNR survey. South Lake is the deepest at 88 ft, then Halfmoon Lake (87 ft), Blind Lake (80 ft) and Whitmore Lake (69 ft). The depth of the other 39 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 67 lakes with satellite readings, the middle value in Washtenaw County is 9 ft. The clearest is Losee Lake at about 16 ft, then Wild Goose Lake (16 ft), Silver Lake, Freedom Township (16 ft) and Burkhart Lake (15 ft). The least clear is Ella Lee 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 20 public access sites on 20 lakes in Washtenaw County; 18 require a Recreation Passport. The other 64 named lakes have no public access site listed by Michigan DNR.
| Lake | Site | Facilities |
|---|---|---|
| Portage Lake | Portage Lake | 2 ramp lanes · 22 trailer spaces · 5 car spaces · vault toilet · accessible restroom · Recreation Passport required |
| Whitmore Lake | Whitmore Lake | 2 ramp lanes · 47 trailer spaces · 2 car spaces · vault toilet · accessible restroom · Recreation Passport required |
| Winnewana Lake | Winnewanna Impoundment | 1 ramp lane · 4 trailer spaces · 2 car spaces · vault toilet · accessible restroom · Recreation Passport required |
| Fourmile Lake | Four Mile Lake | 1 ramp lane · 5 trailer spaces |
| Halfmoon Lake | Half-moon Lake | 1 ramp lane · 25 trailer spaces · accessible restroom · Recreation Passport required |
| North Lake | North Lake | 1 ramp lane · 10 trailer spaces · vault toilet · accessible restroom · Recreation Passport required |
| South Lake | South Lake | 1 ramp lane · 12 trailer spaces · vault toilet · accessible restroom · Recreation Passport required |
| Joslin Lake, Lyndon Township | Joslin Lake | 1 ramp lane · 16 trailer spaces · 8 car spaces · Recreation Passport required |
| Sugarloaf Lake | Sugarloaf Lake | 1 ramp lane · 5 trailer spaces · Recreation Passport required |
| Mill Lake | Mill Lake | 1 ramp lane · 4 trailer spaces · 4 car spaces · vault toilet · accessible restroom · Recreation Passport required |
| Bruin Lake | Bruin Lake | 1 ramp lane · 10 trailer spaces · accessible restroom · Recreation Passport required |
| Crooked Lake, Sylvan Township | Crooked Lake | 1 ramp lane · 8 trailer spaces · 2 car spaces · Recreation Passport required |
| Green Lake | Green Lake | 1 ramp lane · 1 trailer space · 2 car spaces · Recreation Passport required |
| Crooked Lake, Dexter Township | Crooked Lake | 1 ramp lane · 1 trailer space · 4 car spaces · vault toilet · accessible restroom · Recreation Passport required |
| Mud Lake | Mud Lake | 1 ramp lane · 1 trailer space · 2 car spaces · Recreation Passport required |
| Cedar Lake | Cedar Lake | 1 ramp lane · 4 trailer spaces · 2 car spaces · Recreation Passport required |
| Dexter Mill Pond | Mill Creek Park | |
| Sullivan Lake | Sullivan Lake | 3 car spaces · Recreation Passport required |
| Pickerel Lake | Pickerel Lake | 20 car spaces · vault toilet · accessible restroom · Recreation Passport required |
| Doyle Lake | Doyle Lake | 1 trailer space · 4 car spaces · Recreation Passport required |
Michigan DNR boating access sites, fetched 8 Oct 2026.
Michigan DNR has stocked 20 lakes in Washtenaw County 205 times since 1979. Walleye went into 6 lakes: Barton Pond, Ford Lake, Halfmoon Lake, Portage Lake, South Lake and Whitmore Lake. The most recent stocking was 42,857 walleye in Portage Lake on 8 July 2026. Rivers and smaller waters stocked in the county: Arms Creek, Johnson Drain, Mill Creek, Paint Creek and Saline River.
| Species | Lakes | Where |
|---|---|---|
| Redear sunfish | 10 | Bruin Lake, Fourmile Lake, Halfmoon Lake, Independence Lake, Joslin Lake, Lyndon Township and Mill Lake and 4 more |
| Walleye | 6 | Barton Pond, Ford Lake, Halfmoon Lake, Portage Lake, South Lake and Whitmore Lake |
| Tiger muskellunge | 6 | Barton Pond, Ford Lake, Geddes Pond, Portage Lake, Silver Lake, Dexter Township and Whitmore Lake |
| Channel catfish | 5 | Argo Pond, Barton Pond, Ford Lake, Geddes Pond and Portage Lake |
| Largemouth bass | 4 | Barton Pond, Geddes Pond, Gorman Lake and Winnewana Lake |
| Bluegill | 3 | Ford Lake, Gorman Lake and Winnewana Lake |
| Rainbow trout | 3 | Blind Lake, Pickerel Lake and South Lake |
| Northern pike | 2 | Ford Lake and Fourmile Lake |
| Hybrid sunfish | 1 | Cavanaugh Lake |
| Fathead minnow | 1 | Winnewana Lake |
| Smallmouth bass | 1 | Barton Pond |
| Splake | 1 | Blind Lake |
2026: 2 stockings, 80,811 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 Ford Lake. Check current advisories before swimming.
Michigan DHHS has records for 8 lakes in Washtenaw County: water samples tested for the toxin microcystin, and bloom reports from the public that may not have been tested. 3 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.
116 lakes of 10 acres or more, 84 of them named, in Michigan's hydrography layer. Smaller ponds are not counted.
Ford Lake, at 958 acres.
South Lake, 88 ft at its deepest point by Michigan DNR survey.
Losee Lake, with an average Secchi depth of about 16 ft (satellite readings, 2018–23).
Michigan DNR lists public access sites on Portage Lake, Whitmore Lake, Winnewana Lake, Fourmile Lake, Halfmoon Lake, North Lake, South Lake and Joslin Lake, Lyndon Township and 12 more.
Barton Pond, Ford Lake, Halfmoon Lake, Portage Lake, South Lake and Whitmore Lake, by Michigan DNR stocking records.
Michigan DHHS has algae records for 8 lakes here; 3 measured at or above the EPA swimming guideline of 8 ppb at least once.