Diamond Lake
Newaygo County, Michigan188 acresView mapDirections
EGLE publishes the water-quality measurements for Diamond Lake. Here is what has been measured.
- 25 ft max depth
- Public access
- Limited data
Diamond Lake in Newaygo County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 12.3 ft visibility. Maximum depth: 25 ft. Surface area: 188.3 acres.
Diamond Lake is a 188-acre lake in Newaygo County, Michigan with a maximum depth of 25 feet. The lake supports 25 documented fish species including Black crappie, Blacknose shiner, and Bluegill. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2019-09-12. Methodology: how these readings are compared.
What Diamond Lake is good for
From access and monitoring records, not editorial picks.
- Clear water12.3 ft of visibility
- Boat launch1 documented ramp
- Fishing25 species recorded
Swimming conditions
No readingLimited data
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.
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.
Good clarity, visible to about 12.3 ft. TSI 41.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 12.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Diamond Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
25 ft
Surface area
188 acres
Public access
Yes
Listed by EGLE
Recreation & Access
- Diamond LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Fish Species
Click a species to see every lake where it is documented.
Fishing Diamond Lake
Nearby Lakes in Newaygo County
Frequently asked questions about Diamond Lake
Where is Diamond Lake?
- Diamond Lake is a lake in Newaygo 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 Newaygo County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 12.3 ft visibility. Maximum depth: 25 ft. Surface area: 188.3 acres.
Is Diamond Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Diamond Lake?
- Diamond Lake has a maximum depth of 25 feet. The lake covers 188.3 acres.
What fish are in Diamond Lake?
- Fish species found in Diamond Lake include Black crappie, Blacknose shiner, Bluegill, Bluntnose minnow, Bowfin, Brook silverside, Brown bullhead, Golden shiner, Johnny darter, Largemouth bass, Longnose gar, Mimic shiner, Northern longear sunfish, Northern pike, Pumpkinseed, Rock bass, Sand shiner, Smallmouth bass, Spottail shiner, Walleye, Warmouth, Western banded killifish, White sucker, Yellow bullhead, Yellow perch. Diamond Lake is located in Newaygo County, Michigan.
Are there boat ramps on Diamond Lake?
- Diamond Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Diamond Lake. Public access is listed as yes.
Can I fish at Diamond Lake?
- Diamond 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.
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Where this data comes from
9 measurements from 1 monitoring station, 2019. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS9 samples · 2019
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory