Pickerel Lake
Pickerel Lake in Walworth County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 8.5 ft visibility. Maximum depth: 31 ft. Surface area: 32 acres.
Wisconsin DNR lists Panfish as common on Pickerel Lake. DNR survey details →
- Clarity
- 8.5 ft
- Max depth
- 31 ft
- Area
- 32 acres
- Trend
- ↓ Declining
- Public access
- Yes
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Why Pickerel 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 Pickerel Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). 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 WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Pickerel Lake is a 32-acre lake in Walworth County, Wisconsin with a maximum depth of 31 feet. Overall water quality is declining over recent sampling years. The lake supports 3 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2023-08-17. 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 Pickerel Lake
These readings exist but are not enough for an A–F grade — see why.
Moderate clarity, visible to about 8.5 ft. Trophic State Index: 46.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Pickerel Lake
Compare lakeside cabins, hotels, and vacation rentals near Pickerel Lake in Walworth 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 Pickerel Lake
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Wisconsin DNR lists Panfish as common on Pickerel Lake.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Pickerel Lake — official chemistry is on file, not a letter, and the water-quality trend over 7 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2023).
Fish Species (DNR-rated)
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 31 ft |
| Surface Area | 32 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Pickerel Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: ↓ Declining
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.25 m/yr | 7 |
| Phosphorus | ↓ Declining | +0.52 µg/L/yr | 5 |
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Pickerel Lake under Clean Water Act (NPDES) discharge permits.
- Feltes Sand And GravelElburn · 1.5 mi away · NPDES IL0078352
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Graded lakes near Pickerel Lake
Pickerel Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Walworth County
Frequently asked questions about Pickerel Lake
Where is Pickerel Lake?
- Pickerel Lake is a lake in Walworth County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Pickerel Lake?
- Pickerel Lake in Walworth County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 8.5 ft visibility. Maximum depth: 31 ft. Surface area: 32 acres.
Is Pickerel Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Pickerel 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 Pickerel Lake?
- Pickerel Lake has a maximum depth of 31 feet. The lake covers 32 acres.
What fish are in Pickerel Lake?
- Fish species found in Pickerel Lake include Panfish, Largemouth Bass, Northern Pike. Pickerel Lake is located in Walworth County, Wisconsin.
What did the DNR fisheries survey find at Pickerel Lake?
- Wisconsin DNR lists Panfish as common on Pickerel Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Pickerel Lake — official chemistry is on file, not a letter, and the water-quality trend over 7 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
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Where this data comes from
1 measurement from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX1 sample · 2023
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes