Caroline Lake
Caroline Lake in Ashland County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 123 acres.
- Area
- 123 acres
Next lake in Ashland County
Swipe left or right on this bar to open the next or previous lake.
Why Caroline 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 Caroline 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.
Caroline Lake is a 123-acre lake in Ashland County, Wisconsin. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Caroline 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 Caroline 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 Caroline Lake
Compare lakeside cabins, hotels, and vacation rentals near Caroline Lake in Ashland 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 Caroline 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 | 123 acres |
No bathymetric survey has been published for Caroline Lake, so its depth is not documented here.
Recreation & Access
- Caroline LakeSemi-private
- Caroline LakeSemi-private
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Caroline Lake
Nearby Lakes in Ashland County
Frequently asked questions about Caroline Lake
Where is Caroline Lake?
- Caroline Lake is a lake in Ashland 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 Caroline Lake?
- Caroline Lake in Ashland County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 123 acres.
Is Caroline Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Caroline Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Caroline Lake?
- Caroline Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Caroline Lake, Caroline Lake.
Explore Caroline Lake across LakeQuality
Fish species and top-graded lakes across Wisconsin
Fish species and best lakes in Ashland County
Species activity outlook by water temperature and season
Where to stay at Wisconsin's top lakes, each with its grade
Lakes in the Lake Superior Basin (MN+WI), ranked by water quality
Wisconsin's cleanest and most-polluted lakes, ranked
More Wisconsin Lake Rankings
State Parks Near Caroline Lake
Other Lakes in Wisconsin
Where this data comes from
Measurements for Caroline Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory