Hoags Lake
Hoags Lake in Mason County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 11.5 ft visibility. Maximum depth: 18 ft. Surface area: 35.3 acres.
- Clarity
- 11.5 ft
- Max depth
- 18 ft
- Area
- 35 acres
- Trend
- ↓ Declining
- Public access
- Yes
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Why Hoags 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 Hoags Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
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.
Hoags Lake is a 35-acre lake in Mason County, Michigan with a maximum depth of 18 feet. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2018-09-04. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Hoags Lake
These readings exist but are not enough for an A–F grade — see why.
Good clarity, visible to about 11.5 ft. Trophic State Index: 42.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 42 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Hoags Lake
Compare lakeside cabins, hotels, and vacation rentals near Hoags Lake in Mason 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.
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 18 ft |
| Surface Area | 35 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
Fishing Hoags Lake
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.46 m/yr | 2 |
Graded lakes near Hoags Lake
Hoags Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Mason County
Frequently asked questions about Hoags Lake
Where is Hoags Lake?
- Hoags Lake is a lake in Mason County, Michigan. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Hoags Lake?
- Hoags Lake in Mason County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 11.5 ft visibility. Maximum depth: 18 ft. Surface area: 35.3 acres.
Is Hoags Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Hoags 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 Hoags Lake?
- Hoags Lake has a maximum depth of 18 feet. The lake covers 35.3 acres.
Are there boat ramps on Hoags Lake?
- Hoags Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Public access is listed as yes.
Explore Hoags Lake across LakeQuality
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Where this data comes from
14 measurements from 1 monitoring station, 2017–2018. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS14 samples · 2017–2018
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory