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Cherry Lake

Lake County, MinnesotaLimited DataOligotrophic

On the LakeGrade rubric, Cherry Lake pulls an A: clarity at 22.0 ft and phosphorus readings still being added put it in the top bracket for Minnesota.

Trophically, Cherry Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. The lake bottoms out at 30 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Cherry Lake is small — 19 acres alongside 1.1 miles of shoreline — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Cherry Lake ranks 16 of 142 in Lake County, putting it in the upper tier of locally monitored lakes.

Cherry Lake has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Cherry Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2023-07-19. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Crystal clear, you can see 22 ft down. Trophic State Index: 33.

MetricValueGrade
Water Clarity (Secchi Depth)22 ftA
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)33Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth30 ft
Surface Area18.65 acres
Shoreline Length1.1 mi
Littoral Zone70%
Public AccessNo

Water Quality Trend: Declining

Based on 4 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.823 m/yr4
See year-by-year chart →

Location

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County Ranking

Ranked #16 of 142 lakes in Lake County

Nearby Lakes in Lake County

DNR Fisheries Survey Summary

1 survey on file from MN DNR Fisheries. Most recent: 1973-07-15 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Yellow Perch52.000.12 lb
Green Sunfish3.000.05 lb

CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.

From the 1973-07-15 survey

Consists of green sunfish and perch. Both species are small in size.

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Cherry Lake. 1 report on file.

EPA Impairment Status

Cherry Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Mercury

Source: EPA ATTAINS assessment unit MN38-0166-00 · Official waterbody report

Data Sources

Water quality data from the EPA Water Quality Portal

Impairment status from EPA ATTAINS 303(d) database

Grading methodology based on Metropolitan Council standards

Lake details from Minnesota DNR LakeFinder

Most recent sample: 2023-07-19

Monitoring stations: 6