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.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.2 ft | B |
| Phosphorus | 21 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 73 ft |
| Average Depth | 19.2 ft |
| Surface Area | 3.2K acres |
| Shoreline Length | 22.3 mi |
| Littoral Zone | 50% |
| Public Access | Yes |
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
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.308 m/yr | 5 |
| Phosphorus | ↓ Declining | +0.65 µg/L/yr | 5 |
Ice Season
Historical ice data from Minnesota DNR (18 observations).
Estimated open water season: 238 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2017-03-19 (2017) | 2014-04-26 (2014) |
| Ice-In | 2007-11-28 (2007) | 2004-12-14 (2004) |
Most recent ice-out: 2017-03-19
Location
County Ranking
Ranked #14 of 64 lakes in Wright County
Nearby Lakes in Wright County
More Minnesota Lake Rankings
State Parks Near Clearwater Lake
Other Grade B Lakes in Minnesota
Mesotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
22 surveys on file from MN DNR Fisheries. Most recent: 2025-10-07 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| BKS | 82.75 | — |
| Bluegill | 22.51 | 0.16 lb |
| Walleye | 13.28 | 1.76 lb |
| Largemouth Bass | 11.85 | 1.07 lb |
| Yellow Bass | 10.04 | 0.68 lb |
| Bluntnose Minnow | 7.78 | — |
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
Walleye
Largemouth Bass
Yellow Bass
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…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Clearwater Lake. 4 reports on file.
- —Fisheries Lake Survey — ClearwaterFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Clearwater (2009)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — ClearwaterFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — ClearwaterPublic Water Access Sites · 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
Ice data from Minnesota DNR Climate
Most recent sample: 2024-09-27
Monitoring stations: 2