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LakeQuality
B

Clearwater Lake

Wright County, MinnesotaMesotrophic

Clearwater Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

The lake sits in the mesotrophic zone — the band where most well-managed Minnesota lakes fall. At 73 ft of maximum depth, Clearwater Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. At 3,187 acres, Clearwater Lake is one of the larger lakes in Wright County, with 22.3 miles of shoreline supporting multiple distinct use patterns. Clearwater Lake ranks 14 of 64 in Wright County, putting it in the upper tier of locally monitored lakes.

Clearwater Lake is on the Minnesota infested-waters list for zebra mussels — boaters should follow clean-drain-dry protocols when moving gear to or from the lake. Walleye are documented at Clearwater Lake, one of 17 fish species on record for the lake. A documented public access point at Clearwater Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Ice-out has been recorded 11 times at Clearwater Lake, with a median around Apr 11. 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 2024-09-27. 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 10.2 ft. Phosphorus level: 21 µg/L. Trophic State Index: 46.

MetricValueGrade
Water Clarity (Secchi Depth)10.2 ftB
Phosphorus21 µg/LB
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)46Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth73 ft
Average Depth19.2 ft
Surface Area3.2K acres
Shoreline Length22.3 mi
Littoral Zone50%
Public AccessYes

Fish Species

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

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

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

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

Invasive Species

Eurasian watermilfoilstarry stonewortzebra mussel

Water Quality Trend: Stable

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

MetricTrendChange/YearYears
Water Clarity Improving+0.308 m/yr5
Phosphorus Declining+0.65 µg/L/yr5

Ice Season

Historical ice data from Minnesota DNR (18 observations).

Typical Ice-Out
Apr 11
Typical Ice-In
Dec 5

Estimated open water season: 238 days

EarliestLatest
Ice-Out2017-03-19 (2017)2014-04-26 (2014)
Ice-In2007-11-28 (2007)2004-12-14 (2004)

Most recent ice-out: 2017-03-19

Location

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County Ranking

Ranked #14 of 64 lakes in Wright County

Nearby Lakes in Wright County

State Parks Near Clearwater Lake

DNR Fisheries Survey Summary

22 surveys on file from MN DNR Fisheries. Most recent: 2025-10-07 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
BKS82.75
Bluegill22.510.16 lb
Walleye13.281.76 lb
Largemouth Bass11.851.07 lb
Yellow Bass10.040.68 lb
Bluntnose Minnow7.78

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

142 fish · 39 in · 2025-07-28
35180trophy 103456789

Walleye

8 fish · 712 in · 2025-10-07
530789101112

Largemouth Bass

15 fish · 816 in · 2025-07-28
9508910111213141516

Yellow Bass

314 fish · 513 in · 2025-07-28
1135705678910111213

From the 2025-10-07 survey

The Walleye population in Clearwater Lake has been sustained through fry stocking since 1998, with annual fry stocking conducted from 2014 through 2019. While fry stocking has been regularly implemented, fall electrofishing results have only exceeded the target catch rate of 25 young-of-year (YOY) Walleye per hour…

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 Clearwater Lake. 4 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

Ice data from Minnesota DNR Climate

Most recent sample: 2024-09-27

Monitoring stations: 2