Andrusia Lake
Andrusia Lake in Beltrami County, Minnesota has a water quality grade of A (Excellent). Water clarity: 15.1 ft visibility. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 3.6 µg/L. Maximum depth: 60 ft. Surface area: 1595.51 acres.
- Clarity
- 15.1 ft
- Typical in August
- 71°F
- Max depth
- 60 ft
- Area
- 1,596 acres
- Type
- Mesotrophic
- Trend
- ↓ Declining
- Public access
- Yes
- Ice-out
- Apr 24
- Open water
- 224 days
Next lake in Beltrami County
Free interactive depth-contour map of Andrusia Lake, reaching a maximum surveyed depth of 55 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Minnesota DNR.
Andrusia Lake is a 1,596-acre mesotrophic lake in Beltrami County, Minnesota with a maximum depth of 60 feet. Water quality is graded A based on 3 sampling years through 2025. Overall water quality is declining over recent sampling years. The lake supports 21 documented fish species including black bullhead, black crappie, and bluegill. Public access is available with 1 public boat landing. Compared to the 84 other monitored lakes in Beltrami County, Andrusia Lake ranks #12 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-10-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLow algae
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A (Excellent)
Crystal clear, you can see 15.1 ft down. Phosphorus level: 14.5 µg/L. Chlorophyll-a: 3.6 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 15.1 ft | Not graded |
| Phosphorus | 14.5 µg/L | Good |
| Chlorophyll-a (Algae) | 3.6 µg/L | Good |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Andrusia Lake
Compare lakeside cabins, hotels, and vacation rentals near Andrusia Lake in Beltrami 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.
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Water Temperature
Andrusia Lake typically sits around 71°F at the surface in August. Summer average is about 70°F. Usually warmest in Jul (about 74°F) and coldest in May (about 57°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 22 field readings (2011–2019) via the EPA Water Quality Portal. See the full Andrusia Lake water temperature breakdown →
Blue-Green Algae (Cyanobacteria)
There’s no recent EPA CyAN cyanobacteria estimate for Andrusia Lake — clouds, ice, or an off-season gap in coverage. The most recent reading was moderate (42,462 cells/mL) on May 2, 2026.
Blue-green algae can appear and clear within days, so check your state’s current advisory before swimming. EPA CyAN ↗
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 60 ft |
| Surface Area | 1,596 acres |
| Shoreline Length | 10.3 mi |
| Littoral Zone | 27% |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Andrusia Lake (North)Public
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Andrusia Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
DNR Fisheries Survey Summary
8 surveys on file from MN DNR Fisheries. Most recent: 2025-08-05 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Yellow Perch | 56.01 | 0.18 lb |
| Bluntnose Minnow | 22.85 | — |
| MMS | 16.66 | — |
| Largemouth Bass | 16.61 | 0.48 lb |
| Spottail Shiner | 16.18 | — |
| BKF | 14.91 | — |
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.
Yellow Perch
Largemouth Bass
From the 2025-08-05 survey
Temperature and dissolved oxygen measurements were collected from the deepest basin in Lake Andrusia, which is located wholly within the Leech Lake Reservation, on August 5th, 2025, to evaluate the quantity and quality of cold, oxygenated water (oxythermal habitat) available to coldwater fish species such as Cisco,…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Andrusia Lake. 4 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — AndrusiaFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Andrusia (1725)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — AndrusiaFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — AndrusiaPublic Water Access Sites · MN DNR LakeFinder
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.146 m/yr | 6 |
| Phosphorus | ↓ Declining | +1.95 µg/L/yr | 4 |
| Chlorophyll-a | ↓ Declining | +0.1 µg/L/yr | 3 |
Ice Season
Historical ice data from Minnesota DNR (39 observations).
Estimated open water season: 224 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2012-04-01 (2012) | 2013-05-14 (2013) |
| Ice-In | 2023-11-28 (2023) | 2024-12-11 (2024) |
Most recent ice-out: 2025-04-25
EPA Impairment Status
Andrusia Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN04-0085-00 · Official waterbody report · Matched by proximity (2.5 km)
County Ranking
Ranked #12 of 85 lakes in Beltrami County
Nearby Lakes in Beltrami County
Frequently asked questions about Andrusia Lake
What is the water quality grade for Andrusia Lake?
- Andrusia Lake in Beltrami County, Minnesota has a water quality grade of A (Excellent). Water clarity: 15.1 ft visibility. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 3.6 µg/L. Maximum depth: 60 ft. Surface area: 1595.51 acres.
Is Andrusia Lake safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. Andrusia Lake has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 3.6 µg/L. Always check local health department advisories before swimming.
What is the water temperature of Andrusia Lake?
- Andrusia Lake typically sits around 71°F at the surface in August, from 22 EPA Water Quality Portal field readings (2011–2019). That is a typical value for the month, not a live reading.
How deep is Andrusia Lake?
- Andrusia Lake has a maximum depth of 60 feet. The lake covers 1595.51 acres.
What fish are in Andrusia Lake?
- Fish species found in Andrusia Lake include black bullhead, black crappie, bluegill, bowfin (dogfish), brown bullhead, burbot, cisco species, greater redhorse, green sunfish, hybrid sunfish, largemouth bass, muskellunge, northern pike, pumpkinseed, rock bass, shorthead redhorse, tullibee (cisco), walleye, white sucker, yellow bullhead, yellow perch. Andrusia Lake is located in Beltrami County, Minnesota.
When does Andrusia Lake thaw?
- Andrusia Lake typically has ice-out around Apr 24. Ice typically forms around Dec 4. The open water season is approximately 224 days.
Does Andrusia Lake have blue-green algae?
- There is no recent EPA CyAN cyanobacteria estimate for Andrusia Lake (clouds, ice, or an off-season gap). The most recent reading was moderate (42,462 cells/mL). Blue-green algae can appear and clear within days, so check Minnesota's current advisory before swimming.
Are there boat ramps on Andrusia Lake?
- Andrusia Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Andrusia Lake (North). Public access is listed as yes.
Explore Andrusia Lake across LakeGrade
Depth, room, public access, and the state wake-sport rules
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Where this data comes from
110 measurements from 3 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA87 samples · 2020–2025 - Leech Lake Band of Ojibwe
LEECHLAK_WQX23 samples · 2024–2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- Nitrate-Nitrite Nitrogen by Colorimetry
Monitoring station identifiers (3)
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
Impairment status from EPA ATTAINS 303(d) database
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