Updated 9 Oct 2026, 11:01 pm EDT. Get alerts for Ionia County lakes
National Weather Service; National Interagency Fire Center; U.S. EPA CyAN satellite; Michigan DHHS; Michigan DNR. Weather, warnings and fires refresh when you open the page (checked at most hourly); algae and launches are as of the date above.
27 lakes · 2,085 acres · 4 with measured depth · 7 with a public launch · 7 stocked
Ionia County has 27 lakes of 10 acres or more, 17 of them named, covering 2,085 acres of water. The largest is Webber at 442 acres; the deepest measured is Long Lake at 57 ft. Michigan DNR has surveyed the depth of 4 lakes here.
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.
6 lakes in Ionia County cover 100 acres or more. The 12 largest are listed here; the full register of 17 named lakes follows.
| Lake | Acres | Deepest | Clarity | Launches | Last stocked |
|---|---|---|---|---|---|
| Webber | 442 | 1 | |||
| Long Lake | 357 | 57 ft | 8 ft | 1 | 1990 |
| Morrison Lake | 315 | 15 ft | 3 ft | 1 | 1999 |
| Sessions Lake | 139 | about 55 ft (est.) | 5 ft | 1 | 2025 |
| Portland Municipal Dam | 130 | ||||
| Lowell Impoundment | 126 | ||||
| Tupper Lake | 96 | 37 ft | 4 ft | 2001 | |
| Wager Dam | 89 | 5 ft | |||
| Woodard Lake | 70 | 20 ft | 9 ft | 1 | 2024 |
| Grand River | 48 | 1 | 2026 | ||
| Peddler Lake | 34 | about 25 ft (est.) | 2 ft | ||
| Cryderman Lake | 23 | about 35 ft (est.) | 3 ft |
| Lake | Acres | Deepest | Clarity | Launches | Last stocked |
|---|---|---|---|---|---|
| Webber | 442 | 1 | |||
| Long Lake | 357 | 57 ft | 8 ft | 1 | 1990 |
| Morrison Lake | 315 | 15 ft | 3 ft | 1 | 1999 |
| Sessions Lake | 139 | about 55 ft (est.) | 5 ft | 1 | 2025 |
| Portland Municipal Dam | 130 | ||||
| Lowell Impoundment | 126 | ||||
| Tupper Lake | 96 | 37 ft | 4 ft | 2001 | |
| Wager Dam | 89 | 5 ft | |||
| Woodard Lake | 70 | 20 ft | 9 ft | 1 | 2024 |
| Grand River | 48 | 1 | 2026 | ||
| Peddler Lake | 34 | about 25 ft (est.) | 2 ft | ||
| Cryderman Lake | 23 | about 35 ft (est.) | 3 ft | ||
| Augst Lake | 20 | about 35 ft (est.) | 7 ft | ||
| Peck Lake | 19 | about 25 ft (est.) | 8 ft | ||
| Flat River | 15 | 1 | 1980 | ||
| Church Lake | 14 | 7 ft | |||
| Marker Lake | 10 | 2 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 7–9 Oct 2026.
2 lakes in Ionia County are 25 ft deep or more by Michigan DNR survey. Long Lake is the deepest at 57 ft, then Tupper Lake (37 ft), Woodard Lake (20 ft) and Morrison Lake (15 ft). The depth of the other 13 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 12 lakes with satellite readings, the middle value in Ionia County is 5 ft. The clearest is Woodard Lake at about 9 ft, then Long Lake (8 ft), Peck Lake (8 ft) and Church Lake (7 ft). The least clear is Marker 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 7 public access sites on 7 lakes in Ionia County; 5 require a Recreation Passport. The other 10 named lakes have no public access site listed by Michigan DNR.
| Lake | Site | Facilities |
|---|---|---|
| Webber | Webber Impoundment | 1 ramp lane · 17 trailer spaces · vault toilet · accessible restroom · Recreation Passport required |
| Long Lake | Long Lake | 1 ramp lane · 11 trailer spaces · 8 car spaces · vault toilet · accessible restroom · Recreation Passport required |
| Morrison Lake | Morrison Lake | 1 ramp lane · 24 trailer spaces · vault toilet · accessible restroom · Recreation Passport required |
| Sessions Lake | Sessions Lake | 2 ramp lanes · 25 trailer spaces · vault toilet · accessible restroom · Recreation Passport required |
| Woodard Lake | Woodard Lake | 1 ramp lane · 8 trailer spaces · vault toilet · accessible restroom · Recreation Passport required |
| Grand River | Lyons | 1 ramp lane |
| Flat River | Belding Dam | 1 ramp lane · flush toilets |
Michigan DNR boating access sites, fetched 9 Oct 2026.
Michigan DNR has stocked 7 lakes in Ionia County 204 times since 1979. Walleye went into 5 lakes: Grand River, Morrison Lake, Sessions Lake, Tupper Lake and Woodard Lake. The most recent stocking was 8,121 rainbow trout in Grand River on 28 April 2026. Rivers and smaller waters stocked in the county: Bellamy Creek, Duck Creek, Fish Creek, Grand River (Portland), Lake Creek, Looking Glass River, Maple River and Messer Brook and 5 more.
| Species | Lakes | Where |
|---|---|---|
| Walleye | 5 | Grand River, Morrison Lake, Sessions Lake, Tupper Lake and Woodard Lake |
| Rainbow trout | 2 | Grand River and Sessions Lake |
| Channel catfish | 2 | Long Lake and Sessions Lake |
| Brown trout | 2 | Flat River and Sessions Lake |
| Coho salmon | 1 | Grand River |
| Chinook salmon | 1 | Grand River |
| Black crappie | 1 | Sessions Lake |
| Bluegill | 1 | Sessions Lake |
| Smallmouth bass | 1 | Sessions Lake |
| Fathead minnow | 1 | Sessions Lake |
| Largemouth bass | 1 | Sessions Lake |
2026: 2 stockings, 32,099 fish in 1 lake.
Michigan DNR Fisheries stocking records, fetched 9 Oct 2026. Each stocking is placed by its survey section, so lakes that share a name are kept apart. How we measure
Michigan DHHS has records for 3 lakes in Ionia 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.
27 lakes of 10 acres or more, 17 of them named, in Michigan's hydrography layer. Smaller ponds are not counted.
Webber, at 442 acres.
Long Lake, 57 ft at its deepest point by Michigan DNR survey.
Woodard Lake, with an average Secchi depth of about 9 ft (satellite readings, 2018–23).
Michigan DNR lists public access sites on Webber, Long Lake, Morrison Lake, Sessions Lake, Woodard Lake, Grand River and Flat River.
Grand River, Morrison Lake, Sessions Lake, Tupper Lake and Woodard Lake, by Michigan DNR stocking records.
Michigan DHHS has algae records for 3 lakes here; 0 measured at or above the EPA swimming guideline of 8 ppb at least once.