Skip to main content
LakeQuality

Diamond Lake

Mecosta County, Michigan86 acresView mapDirections

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

Area
86 acres
Surface area
Shoreline
0.8 mi
Measured length

Diamond Lake in Mecosta County, Michigan has water-quality measurements published by EGLE, shown here as reported. Surface area: 85.7 acres.

Loading map…

Water clarity at Diamond Lake

Moderate clarity. Across summers from 2018 to 2023, Diamond Lake averaged 2.55 m (8 ft) of visibility down into the water, so visibility is middling in midsummer, which is ordinary for a productive inland lake. This lake sits close to the line between clarity classes, so treat the label as approximate and the depth reading as the real number.

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 6.49 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.

Diamond Lake is a 86-acre lake in Mecosta County, Michigan.

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

Swimming conditions

No reading

Not rated

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

Whether Diamond 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.

Compare swimming lakes near Grand Rapids →

Get alerts for Diamond Lake →

Water quality measurements for Diamond Lake

These are the measurements EGLE publishes for Diamond 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 Diamond Lake

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

Lake Details

Average depth

Not documented

Surface area

86 acres

Shoreline

0.8 mi

The published depth figures for Diamond Lake contradict each other, so no depth is shown.

Stays via Stay22

Stays near Diamond Lake

Compare lakeside cabins, hotels, and vacation rentals near Diamond Lake in Mecosta 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 Diamond 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.

Planning a whole trip? See where to stay at Michigan’s top lakes →

Follow Diamond Lake’s readings

Email me when new measurements post for this lake. Updates stay free.


Or email

Fishing Diamond Lake

Nearby Lakes in Mecosta County

Frequently asked questions about Diamond Lake

Where is Diamond Lake?

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

What is the water quality of Diamond Lake?

Diamond Lake in Mecosta County, Michigan has water-quality measurements published by EGLE, shown here as reported. Surface area: 85.7 acres.

Measurements on this page ↑

Is Diamond Lake safe to swim in?

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

Swimming on this page ↑

How deep is Diamond Lake?

The published depth figures for Diamond Lake contradict each other, so no depth is shown. The lake covers 85.7 acres.

Where this data comes from

Measurements for Diamond Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.