Diamond Lake
Diamond Lake in Mecosta County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 85.7 acres.
- Area
- 86 acres
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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 but carries no A–F grade.
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 A–F grade on other lakes is built from phosphorus and algae measured in a laboratory, and clarity alone cannot stand in for it.
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, last sampled recent years. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Diamond Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay 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
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 86 acres |
| Shoreline Length | 0.8 mi |
The published depth figures for Diamond Lake contradict each other, so no depth is shown.
Fishing Diamond Lake
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Frequently asked questions about Diamond Lake
Where is Diamond Lake?
- Diamond Lake is a lake in Mecosta County, Michigan. LakeQuality has not rated this lake (UNRATED) — no in-situ water sample; this lake is rated for water clarity from satellite observations instead.
What is the water quality grade for Diamond Lake?
- Diamond Lake in Mecosta County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 85.7 acres.
Is Diamond Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Diamond Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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.
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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.