Pickerel Lake
Dakota County, MinnesotaLimited DataEutrophic
Pickerel Lake earns a D — measurements through 2023 show persistent nutrient pressure that limits clarity through the summer. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.
A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. A maximum depth of just 11 ft means sediment-bound phosphorus releases back into the water column whenever wind stirs the bottom — a classic shallow-lake dynamic. At 114 acres, Pickerel Lake fits the Minnesota median for monitored lakes, with 2.5 miles of shoreline. Pickerel Lake sits at rank 21 of 36 in Dakota County, in the lower half of the local distribution.
No invasive species are currently listed at Pickerel Lake — the lake remains off the Minnesota infested-waters roster. Bass fishing is part of the appeal: the species list runs to 15, anchored by largemouth and/or smallmouth bass. No formal public access is documented at Pickerel Lake — most use is by shoreline residents and their guests. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2023-09-18. Grade methodology: LakeGrade methodology.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 3.6 ft. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.6 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 11 ft |
| Surface Area | 114.37 acres |
| Shoreline Length | 2.5 mi |
| Littoral Zone | 100% |
| Public Access | No |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Pickerel Lake (14-day solunar calendar)
→ Is it safe to eat fish from Pickerel Lake? (mercury & PFAS guide)
→ Pickerel Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: → Stable
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.013 m/yr | 2 |
Location
County Ranking
Ranked #21 of 36 lakes in Dakota County
Nearby Lakes in Dakota County
More Minnesota Lake Rankings
State Parks Near Pickerel Lake
Other Grade D Lakes in Minnesota
Eutrophic Lakes in Minnesota
DNR Fisheries Survey Summary
5 surveys on file from MN DNR Fisheries. Most recent: 2015-06-29 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Black Bullhead | 32.72 | 0.33 lb |
| Bluegill | 17.46 | 0.13 lb |
| GIS | 11.07 | 0.73 lb |
| Largemouth Bass | 6.54 | 0.36 lb |
| Northern Pike | 6.02 | 2.65 lb |
| Pumpkinseed | 4.97 | 0.09 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Black Bullhead
Bluegill
GIS
Largemouth Bass
From the 2015-06-29 survey
Pickerel Lake is a 90-acre, class 37 lake located in the Mississippi River floodplain in Lilydale. The lake lies entirely within the Lilydale/Harriet Island Regional Park. During flood events the Mississippi River inundates this shallow, heavily-vegetated basin. Flooding has occurred as recently as the summer of 2010.…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Pickerel Lake. 1 report on file.
- —Fisheries Lake Survey — PickerelFisheries Lake Survey · MN DNR LakeFinder
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Most recent sample: 2023-09-18
Monitoring stations: 1