Lenawee County · Michigan

Devils Lake

Soundings in feet · 1,312 acres · deepest 63 ft

Today on the lake

Updated 9 Oct 2026, 3:35 am EDT. Get alerts for Devils Lake

WEATHEROvernight: mostly clear, 44°F, wind WSW 2 mph. Friday: mostly sunny, 70°F, wind SW 5 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.

ALGAECAUTION Satellite detected cyanobacteria across about 7% of the lake on 5 Oct 2026, the latest clear-sky image.

LAUNCHESDevils Lake: listed open. Michigan DNR record updated 3 Apr 2026.

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

11 contours, 5 to 63 ft

0510203031373840506063feet

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

Size and depth

1,312 acres · deepest 63 ft (measured) · shoreline about 9.7 mi · clarity about 9 ft

Devils Lake is the largest of the 46 named lakes of 10 acres or more in Lenawee County. By Michigan DNR survey it is the 4th deepest of the 20 with a measured depth. Its water is clearer than 14 of the other 40 lakes in the county with satellite clarity readings. Its shoreline measures about 9.7 miles along the state outline. About 0% of its area is deeper than 37 ft.

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

Getting on the water

1 public access site on Devils Lake.

Devils Lake · Hayes State Park · Open

4 ramp lanes · 65 trailer spaces · 5 car spaces · vault toilet · Recreation Passport required

Local boating rules, Lenawee County

Michigan DNR boating access, fetched 7 Oct 2026.

Fishing

Michigan DNR has stocked Devils Lake 51 times since 1980. The most recent stocking was 37,601 walleye on 16 June 2026. Species stocked: golden shiner, redear sunfish, tiger muskellunge, walleye, yellow perch.

51 stockings, 1980 to 2026, log scale

Latest: 16 Jun 2026: 46,308 walleye.

16 Jun 2026STOCKED37,601 walleye

16 Jun 2026STOCKED46,308 walleye

12 Jun 2024STOCKED70,238 walleye

14 Jun 2022STOCKED52,229 walleye

26 Jun 2018STOCKED25,134 walleye

5 Jun 2018STOCKED26,640 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

Historically recorded species, from records through 1950: barred fantail darter, blackchin shiner, blacknose shiner, bluegill, bluntnose minnow, brook silverside, central stoneroller, common carp, creek chub, golden shiner, grass pickerel, iowa darter, johnny darter, lake chubsucker, largemouth bass, least darter, longnose gar, northern hog sucker, northern longear sunfish, northern pike, pumpkinseed, rock bass, smallmouth bass, spotfin shiner, spottail shiner, tadpole madtom, western banded killifish, white bass, white sucker, yellow bullhead, yellow perch. Historic records, not a current survey.

Michigan Fish Atlas.

Water quality

Average water clarity is about 9 ft (Secchi depth 2.6 m, satellite readings 2018–23).

Clarity 8.6 ft of 63 ft

Michigan EGLE satellite clarity, fetched 7 Oct 2026.

Email me about Devils LakeWhen it is stockedMichigan DNR has stocked Devils Lake 51 times since 1980, most recently 37,601 walleye on 16 June 2026. 1 stocking so far in 2026.When algae is reported or testedMichigan DHHS lists 2 bloom reports and 1 water sample here. None in 2026.When satellite sees a bloom startEPA satellite, checked daily, June to October. We email when a bloom first shows on two clear days, not every day it stays. In 2026 that happened on 3 Jun and 14 Sep.Any lake in Lenawee CountyStockings and algae records on every lake in the county. In 2026 so far: 1 email.

In 2026 so far, these alerts would have sent you 3 emails about Devils Lake: 3 Jun, 16 Jun and 14 Sep.

Email address

At most one email a week per lake. We email you a link to confirm before any alert is sent; every email has a one-click unsubscribe.

Nearby lakes with measured depth

Round Lake67 ft deep · 1.7 mi · Lenawee County

Silver Lake26 ft deep · 4.1 mi · Lenawee County

Deep Lake50 ft deep · 4.2 mi · Lenawee County

Onemile Lake47 ft deep · 4.6 mi · Lenawee County

Grassy Lake0 ft deep · 4.6 mi · Lenawee County

Dewey Lake28 ft deep · 4.8 mi · Lenawee County

Michigan DNR survey; straight-line miles.

Common questions

How deep is Devils Lake?

Devils Lake is 63 feet at its deepest point, measured by Michigan DNR survey. It covers 1,312 acres.

Is there a public boat launch on Devils Lake?

Yes. 1 public access site is listed: Devils Lake.

Is Devils Lake stocked with fish?

Yes. Michigan DNR has stocked it 51 times since 1980, most recently 37,601 walleye on 16 June 2026.

How much of Devils Lake is deeper than 10 feet?

About 44% of the lake's area is deeper than 10 feet, measured from Michigan DNR depth contours.