Loon Lake is a lake in Montcalm County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.

How deep is Loon Lake?

Loon Lake has a maximum depth of 50 feet and an average depth of 12 feet. The lake covers 65.7 acres.

Are there boat ramps on Loon Lake?

Loon Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Loon Lake. Public access is listed as yes.

Can I fish at Loon Lake?

Loon Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Michigan's fish and wildlife agency, so check its current regulations before you go.

Loon Lake

Montcalm County, Michigan66 acresView map Directions

No nutrient or algae sampling on record from EGLE for this lake.

Max depth

50 ft

Bathymetric survey

Area

66 acres

Surface area

Shoreline

0.9 mi

Measured length

50 ft max depth
Public access

See the measurements Directions Where to stay

Loon Lake in Montcalm County, Michigan has water-quality measurements published by EGLE, shown here as reported. Maximum depth: 50 ft. Surface area: 65.7 acres.

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Water clarity at Loon Lake

Clear water. Across summers from 2018 to 2023, Loon Lake averaged 4.07 m (13 ft) of visibility down into the water, so you can typically see several feet down in midsummer.

Nobody has taken a water sample here that we can find. Michigan's environmental agency measures clarity on lakes like this one from satellite images instead, which is why this page reports how clear the water is and no phosphorus or algae readings.

Clear is not the same as clean. A lake can be easy to see through and still carry high nutrient levels, and a naturally tea-stained lake can be perfectly healthy. The nutrient and algae readings on other lakes come from phosphorus and chlorophyll-a measured in a laboratory, and clarity alone cannot stand in for them.

The same satellite images put summer algae here at roughly 2.77 micrograms per litre. Estimating algae from orbit is far less exact than measuring clarity, so that figure is worth knowing and is not part of any rating.

Loon Lake is a 66-acre lake in Montcalm County, Michigan with a maximum depth of 50 feet (12-foot average). Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, EGLE. Methodology: how these readings are compared.

What Loon Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp
Deep water50 ft surveyed max depth

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Loon Lake is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Loon Lake

These are the measurements EGLE publishes for Loon Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Loon Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

50 ft

Average depth

12 ft

Surface area

66 acres

Shoreline

0.9 mi

Public access

Yes

Listed by EGLE

Recreation & Access

Boat Landings

Yes

Public Access

Loon LakePublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Stays via Stay22

Stays near Loon Lake

Compare lakeside cabins, hotels, and vacation rentals near Loon Lake in Montcalm County, Michigan — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Loon Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

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Follow Loon Lake’s readings

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Fishing Loon Lake

→ Loon Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Montcalm County

Crystal Lake10 ft clear · Mesotrophic1.4 miView →Mud Lake2.7 miView →Mud Lake2.1 miView →Mud Lake2.1 miView →Crooked Lake3.5 miView →Duck Lake4.1 miView →

Frequently asked questions about Loon Lake

Where is Loon Lake?: Loon Lake is a lake in Montcalm County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Loon Lake?: Loon Lake in Montcalm County, Michigan has water-quality measurements published by EGLE, shown here as reported. Maximum depth: 50 ft. Surface area: 65.7 acres.
Is Loon Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Loon Lake?: Loon Lake has a maximum depth of 50 feet and an average depth of 12 feet. The lake covers 65.7 acres.
Are there boat ramps on Loon Lake?: Loon Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Loon Lake. Public access is listed as yes.
Can I fish at Loon Lake?: Loon Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Michigan's fish and wildlife agency, so check its current regulations before you go.