Sand Lake
Itasca County, MinnesotaMesotrophic
Sand Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Itasca County. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.
Mesotrophic conditions dominate at Sand Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. At 60 ft of maximum depth, Sand Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. At 715 acres, Sand Lake fits the Minnesota median for monitored lakes, with 10.0 miles of shoreline. Sand Lake ranks 44 of 141 in Itasca County — solidly in the upper half of the local distribution.
Sand 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. The state fisheries records do not list documented species for Sand Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Sand Lake — most use is by shoreline residents and their guests. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-10-10. Grade methodology: LakeGrade methodology.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 13 ft. Phosphorus level: 18 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 13 ft | B |
| Phosphorus | 18 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 60 ft |
| Surface Area | 714.55 acres |
| Shoreline Length | 10 mi |
| Littoral Zone | 5% |
| Public Access | No |
Invasive Species
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.169 m/yr | 5 |
| Phosphorus | ↑ Improving | -0.93 µg/L/yr | 3 |
Location
County Ranking
Ranked #44 of 141 lakes in Itasca County
Nearby Lakes in Itasca County
More Minnesota Lake Rankings
State Parks Near Sand Lake
Other Grade A Lakes in Minnesota
Mesotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
2 surveys on file from MN DNR Fisheries. Most recent: 1986-07-17 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Tullibee (Cisco) | 15.50 | 0.97 lb |
| Yellow Perch | 2.94 | 0.29 lb |
| Northern Pike | 2.25 | 0.95 lb |
| Pumpkinseed | 1.08 | 0.33 lb |
| RHS | 1.00 | 5.9 lb |
| Bluegill | 0.92 | 0.6 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
From the 1986-07-17 survey
WALLEYE AND YELLOW PERCH ABUNDANCE IS BELOW STATE- WIDE LOCAL MEDIANS. ALL OTHER SPECIES ARE WITHIN NORMAL LIMITS FOR THIS TYPE OF LAKE. SHORELINE SEINING YIELDING A GOOD NUMBER OF YOUNG-0F-YEAR WALLEYE. WALLEYE AND YELLOW PERCH ABUNDANCE IS BELOW STATEWIDE AND LOCAL MEDIANS. ALL OTHER SPECIES ARE WITHIN NORMAL LIMITS…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Sand Lake. 1 report on file.
- —Fisheries Lake Survey — PortageFisheries Lake Survey · 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
Most recent sample: 2024-10-10
Monitoring stations: 1