Osterhout Lake, Allegan County, MI: Depth Map, Fishing & Water Quality

Where it is

5 miles northwest of Bloomingdale

Allegan County, Michigan · 42.4356° N, 86.0397° W

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The Michigan DNR lists no public access site on Osterhout Lake; much of the shore may be private.

Today on the lake

Updated 10 Oct 2026, 12:46 am EDT. Get alerts for Osterhout Lake

WEATHEROvernight: slight chance rain showers, 55°F, wind SE 7 mph. Saturday: partly sunny, 77°F, wind SSE 8 mph.

WARNINGSNo weather or fire warnings in effect.

FIRENo wildfires or prescribed burns reported within 25 miles.

BURNINGCampfires and debris burning: check today's status with Michigan DNR.

ALGAEToo small for satellite monitoring (under 1 km²). No bloom reports on record with Michigan DHHS.

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).

Depth map

10 contours, 2 to 30 ft

02345101517202230feet

Michigan DNR survey, fetched 7 Oct 2026. Not for navigation.

Size and depth

172 acres · deepest 30 ft (measured) · shoreline about 2.1 mi · clarity about 8 ft

Osterhout Lake is the 12th largest of the 79 named lakes of 10 acres or more in Allegan County. By Michigan DNR survey it is the 6th deepest of the 8 with a measured depth. Its water is clearer than 28 of the other 68 lakes in the county with satellite clarity readings. Its shoreline measures about 2.1 miles along the state outline. About 9% of its area is deeper than 10 ft.

Ranks against Allegan County lakes in Michigan hydrography, Michigan DNR lake surveys and Michigan EGLE satellite clarity; shoreline measured from the state outline. How we measure

Fishing

Michigan DNR has stocked Osterhout Lake 29 times since 1979. The most recent stocking was 589 walleye on 30 October 2025. Species stocked: muskellunge, tiger muskellunge, walleye.

29 stockings, 1979 to 2025, log scale

Latest: 30 Oct 2025: 589 walleye.

30 Oct 2025STOCKED589 walleye

16 Oct 2025STOCKED167 walleye

9 Nov 2022STOCKED336 muskellunge

6 Oct 2022STOCKED689 walleye

13 Nov 2018STOCKED252 muskellunge

4 Oct 2017STOCKED736 walleye

Source: Michigan DNR Fisheries, fetched 7 Oct 2026. How we measure

Where the deep water is

Show water deeper than

Measured from Michigan DNR contours. How we measure

Water quality

Average water clarity is about 8 ft (Secchi depth 2.5 m, satellite readings 2018–23).

Clarity 8.0 ft of 30 ft

Michigan EGLE satellite clarity, fetched 7 Oct 2026.

The area around Osterhout Lake

28 other lakes of 10+ acres within about 6 miles of Osterhout Lake, 5 with a page here (darker blue). Sources: Michigan DNR, US Census Bureau.

Nearby lakes with measured depth

Lake Eleven30 ft deep · 3.0 mi · Van Buren County

Upper Scott Lake5 ft deep · 3.2 mi · Allegan County

Lake Fourteen20 ft deep · 3.8 mi · Van Buren County

Saddle Lake30 ft deep · 3.9 mi · Van Buren County

Lower Scott Lake8 ft deep · 4.0 mi · Allegan County

Great Bear Lake58 ft deep · 4.8 mi · Van Buren County

Michigan DNR survey; straight-line miles.

Common questions

How deep is Osterhout Lake?

Osterhout Lake is 30 feet at its deepest point, measured by Michigan DNR survey. It covers 172 acres.

Is Osterhout Lake stocked with fish?

Yes. Michigan DNR has stocked it 29 times since 1979, most recently 589 walleye on 30 October 2025.

How much of Osterhout Lake is deeper than 10 feet?

About 9% of the lake's area is deeper than 10 feet, measured from Michigan DNR depth contours.