Pomroy Lake
Pomroy Lake in Kanabec County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.5 ft visibility. Maximum depth: 11 ft. Surface area: 412.2 acres.
- Clarity
- 5.5 ft
- Typical in August
- 79°F
- Max depth
- 11 ft
- Area
- 412 acres
- Trend
- ↓ Declining
- Public access
- Yes
- Ice-out
- Apr 16
- Open water
- 221 days
Next lake in Kanabec County
Why Pomroy Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Pomroy Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by MPCA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Pomroy Lake is a 412-acre lake in Kanabec County, Minnesota with a maximum depth of 11 feet (6-foot average). Overall water quality is declining over recent sampling years. The lake supports 9 documented fish species including black bullhead, black crappie, and bluegill. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2022-09-13. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Pomroy Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 5.5 ft. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Pomroy Lake
Compare lakeside cabins, hotels, and vacation rentals near Pomroy Lake in Kanabec County, Minnesota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Pomroy Lake
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Water Temperature
Pomroy Lake typically sits around 79°F at the surface in August. Summer average is about 78°F. Usually warmest in Jul (about 79°F) and coldest in May (about 60°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 21 field readings (2018–2022) via the EPA Water Quality Portal. See the full Pomroy Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 11 ft |
| Average Depth | 5.5 ft |
| Surface Area | 412 acres |
| Shoreline Length | 6.1 mi |
| Littoral Zone | 100% |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Pomroy LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Pomroy Lake
DNR Fisheries Survey Summary
8 surveys on file from MN DNR Fisheries. Most recent: 2019-09-02 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Black Bullhead | 34.66 | 0.22 lb |
| Bluegill | 10.28 | 0.21 lb |
| Yellow Perch | 9.76 | 0.15 lb |
| Largemouth Bass | 9.54 | 1.12 lb |
| Pumpkinseed | 6.31 | 0.17 lb |
| Walleye | 3.44 | 2.69 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
Yellow Perch
Largemouth Bass
From the 2019-09-02 survey
Pomroy is a 422 acre shallow, soft water lake assigned to lake class 39. The shore is predominately sand with some silt. Water color is bog stained but clarity is generally good. Pomroy is subject to frequent winter kills of varying degrees, the latest on record having occurred during the winter of 2013-14. To…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Pomroy Lake. 4 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — PomroyFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Pomroy (0285)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — PomroyFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — PomroyPublic Water Access Sites · MN DNR LakeFinder
Water Quality Trend: ↓ Declining
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.15 m/yr | 3 |
Ice Season
Historical ice data from Minnesota DNR (6 observations).
Estimated open water season: 221 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2003-04-15 (2003) | 2003-04-19 (2003) |
| Ice-In | 2002-11-12 (2002) | 2006-12-30 (2006) |
Most recent ice-out: 2007-04-16
Graded lakes near Pomroy Lake
Pomroy Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Kanabec County
Frequently asked questions about Pomroy Lake
What is the water quality grade for Pomroy Lake?
- Pomroy Lake in Kanabec County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.5 ft visibility. Maximum depth: 11 ft. Surface area: 412.2 acres.
Is Pomroy Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Pomroy Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
What is the water temperature of Pomroy Lake?
- Pomroy Lake typically sits around 79°F at the surface in August, from 21 EPA Water Quality Portal field readings (2018–2022). That is a typical value for the month, not a live reading.
How deep is Pomroy Lake?
- Pomroy Lake has a maximum depth of 11 feet and an average depth of 5.5 feet. The lake covers 412.2 acres.
What fish are in Pomroy Lake?
- Fish species found in Pomroy Lake include black bullhead, black crappie, bluegill, largemouth bass, northern pike, pumpkinseed, walleye, yellow bullhead, yellow perch. Pomroy Lake is located in Kanabec County, Minnesota.
When does Pomroy Lake thaw?
- Pomroy Lake typically has ice-out around Apr 16. Ice typically forms around Nov 23. The open water season is approximately 221 days.
Are there boat ramps on Pomroy Lake?
- Pomroy Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Pomroy Lake. Public access is listed as yes.
Explore Pomroy Lake across LakeGrade
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Where this data comes from
8 measurements from 1 monitoring station, 2020–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA8 samples · 2020–2022
Analytical methods
- Field measurement/observation, generic method
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory
Ice data from Minnesota DNR Climate