Sand Point Lake
Sand Point Lake in St. Louis County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 4259 acres.
Minnesota DNR surveys at Sand Point Lake average 8.78 walleye per unit of sampling effort (CPUE) across 42 surveys. The most recent is a Standard Survey dated September 30, 2025. Length samples in the latest survey that recorded them ran 7–26 inches. DNR survey details →
- Area
- 4,259 acres
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Why Sand Point Lake has no grade
We grade a lake only when the monitoring record supports a letter: 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 Sand Point Lake, no water-quality sampling on record for this lake.
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.
Sand Point Lake is a 4,259-acre lake in St. Louis County, Minnesota.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Sand Point Lake water quality
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Sand Point Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Sand Point Lake
Compare lakeside cabins, hotels, and vacation rentals near Sand Point Lake in St. Louis 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 Sand Point Lake
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Planning a whole trip? See where to stay at Minnesota’s top lakes →
Blue-Green Algae (Cyanobacteria)
There’s no recent EPA CyAN cyanobacteria estimate for Sand Point Lake — clouds, ice, or an off-season gap in coverage. The most recent reading was moderate (73,790 cells/mL) on November 22, 2025.
Blue-green algae can appear and clear within days, so check your state’s current advisory before swimming. EPA CyAN ↗
Minnesota DNR surveys at Sand Point Lake average 8.78 walleye per unit of sampling effort (CPUE) across 42 surveys. The most recent is a Standard Survey dated September 30, 2025. Length samples in the latest survey that recorded them ran 7–26 inches.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Sand Point Lake — official chemistry is on file, not a letter. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
42 surveys on file from MN DNR Fisheries. Most recent: 2025-09-30 (Standard Survey).
Top Species by Catch Rate
| Species | Avg catch rate (CPUE) | Avg Weight |
|---|---|---|
| Walleye | 8.78 | 1.1 lb |
| Tullibee (Cisco) | 7.69 | 0.41 lb |
| Yellow Perch | 3.06 | 0.11 lb |
| Northern Pike | 2.47 | 3.6 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE means more abundant in standardized sampling. This is not a weekly bite report.
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.
Walleye
Tullibee (Cisco)
Yellow Perch
Northern Pike
From the 2025-09-30 survey
Sand Point Lake is located within Voyageurs National Park, approximately 5 miles north of Crane Lake, Minnesota on the International border between Minnesota and Ontario. Sand Point is a Class 2, mesotrophic lake with a total surface area of 8,526 acres, of which 4,848 acres (57%) are in Minnesota. Its waters are…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Sand Point Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — Sand PointFisheries Lake Survey · MN DNR LakeFinder
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 4,259 acres |
No bathymetric survey has been published for Sand Point Lake, so its depth is not documented here.
Fishing Sand Point Lake
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Frequently asked questions about Sand Point Lake
Where is Sand Point Lake?
- Sand Point Lake is a lake in St. Louis County, Minnesota. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Sand Point Lake?
- Sand Point Lake in St. Louis County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 4259 acres.
Is Sand Point Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Sand Point 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 did the DNR fisheries survey find at Sand Point Lake?
- Minnesota DNR surveys at Sand Point Lake average 8.78 walleye per unit of sampling effort (CPUE) across 42 surveys. The most recent is a Standard Survey dated September 30, 2025. Length samples in the latest survey that recorded them ran 7–26 inches. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Sand Point Lake — official chemistry is on file, not a letter. Catch rate is not a swim clearance and is not a weekly bite report.
Does Sand Point Lake have blue-green algae?
- There is no recent EPA CyAN cyanobacteria estimate for Sand Point Lake (clouds, ice, or an off-season gap). The most recent reading was moderate (73,790 cells/mL). Blue-green algae can appear and clear within days, so check Minnesota's current advisory before swimming.
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Where this data comes from
Measurements for Sand Point Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Lake details from Minnesota DNR LakeFinder