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LakeQuality
B

Cedar Lake

Wright County, MinnesotaLimited DataOligotrophic

Cedar Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. 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.

The lake's low TSI puts it in oligotrophic territory — the cleanest of the four trophic classes, but also the most vulnerable to nutrient-driven shifts. The lake bottoms out at 47 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 206 acres, Cedar Lake fits the Minnesota median for monitored lakes, with 4.6 miles of shoreline. Within Wright County's 64 graded waters, Cedar Lake sits at rank 15, near the top of the local distribution.

No invasive species are currently listed at Cedar Lake — the lake remains off the Minnesota infested-waters roster. The fishery is bass-led, with 11 documented species across the lake's records. No formal public access is documented at Cedar 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 2024-10-10. Grade methodology: LakeGrade methodology.

Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Good clarity, visible to about 13.6 ft. Trophic State Index: 39.

MetricValueGrade
Water Clarity (Secchi Depth)13.6 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)39Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth47 ft
Average Depth7.8 ft
Surface Area206.37 acres
Shoreline Length4.6 mi
Littoral Zone63%
Public AccessNo

Fish Species

Click a species to see all Minnesota and Wisconsin lakes where it is found.

→ Best fishing times for Cedar Lake (14-day solunar calendar)

→ Is it safe to eat fish from Cedar Lake? (mercury & PFAS guide)

Cedar Lake fishing regulations (limits, seasons, special rules)

Water Quality Trend: Declining

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.314 m/yr5

Location

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County Ranking

Ranked #15 of 64 lakes in Wright County

Nearby Lakes in Wright County

DNR Fisheries Survey Summary

5 surveys on file from MN DNR Fisheries. Most recent: 2020-06-29 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Bluegill81.800.1 lb
Black Bullhead9.230.45 lb
Yellow Bass9.170.31 lb
Pumpkinseed7.900.08 lb
Largemouth Bass7.570.91 lb
Brown Bullhead7.330.48 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.

Bluegill

229 fish · 37 in · 2020-06-29
9749034567

Black Bullhead

2 fish · 99 in · 2020-06-29
2109

Yellow Bass

67 fish · 511 in · 2020-06-29
1890567891011

Pumpkinseed

47 fish · 37 in · 2020-06-29
2412034567

From the 2020-06-29 survey

Cedar Lake is a small, mostly shallow basin located three miles southwest of Monticello in northern Wright County. The only access on this lake is user-developed and located off of Aetna Avenue NE. Most development has occurred on the east side of the lake. Due to its shallowness and good water clarity, the aquatic…

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 Cedar Lake. 2 reports on file.

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: 2024-10-10

Monitoring stations: 2