Forest Lake
Forest Lake in Forest County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 93 acres.
- Area
- 93 acres
Next lake in Forest County
Swipe left or right on this bar to open the next or previous lake.
Why Forest 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 Forest 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 WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Forest Lake is a 93-acre lake in Forest County, Wisconsin.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Forest 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 Forest 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 Forest Lake
Compare lakeside cabins, hotels, and vacation rentals near Forest Lake in Forest County, Wisconsin — 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 Forest 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 Wisconsin’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 93 acres |
No bathymetric survey has been published for Forest Lake, so its depth is not documented here.
Fishing Forest Lake
Nearby Lakes in Forest County
Frequently asked questions about Forest Lake
Where is Forest Lake?
- Forest Lake is a lake in Forest County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Forest Lake?
- Forest Lake in Forest County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 93 acres.
Is Forest Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Forest 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 Forest Lake across LakeQuality
Fish species and top-graded lakes across Wisconsin
Fish species and best lakes in Forest County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Northwoods Wisconsin area
Where to stay at Wisconsin's top lakes, each with its grade
Lakes in the Wolf River Watershed, ranked by water quality
Wisconsin's cleanest and most-polluted lakes, ranked
More Wisconsin Lake Rankings
Other Lakes in Wisconsin
Where this data comes from
Measurements for Forest Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.