Mallory Lake
Mallory Lake in Hillsdale County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 48 acres.
- Area
- 48 acres
Next lake in Hillsdale County
Swipe left or right on this bar to open the next or previous lake.
Why Mallory Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Mallory Lake, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by EGLE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Mallory Lake is a 48-acre lake in Hillsdale County, Michigan.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Mallory Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Mallory 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 Mallory Lake
Compare lakeside cabins, hotels, and vacation rentals near Mallory Lake in Hillsdale 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 Mallory Lake
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 →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 48 acres |
No bathymetric survey has been published for Mallory Lake, so its depth is not documented here.
Fishing Mallory Lake
Nearby Lakes in Hillsdale County
Frequently asked questions about Mallory Lake
Where is Mallory Lake?
- Mallory Lake is a lake in Hillsdale County, Michigan. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Mallory Lake?
- Mallory Lake in Hillsdale County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 48 acres.
Is Mallory Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Mallory Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Mallory Lake across LakeQuality
Fish species and top-graded lakes across Michigan
Fish species and best lakes in Hillsdale County
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its grade
Michigan's cleanest and most-polluted lakes, ranked
More Michigan Lake Rankings
Other Lakes in Michigan
Where this data comes from
Measurements for Mallory Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.