Lasalle Lake
Lasalle Lake in Hubbard County, Minnesota has a water quality grade of A (Excellent). Water clarity: 6.9 ft visibility. Phosphorus: 8.5 µg/L. Chlorophyll-a (algae): 7 µg/L. Maximum depth: 213 ft. Surface area: 237.9 acres.
- Clarity
- 6.9 ft
- Typical in August
- 47°F
- Max depth
- 213 ft
- Area
- 238 acres
- Type
- Mesotrophic
- Public access
- Yes
- Ice-out
- Apr 20
- Open water
- 229 days
Next lake in Hubbard County
Lasalle Lake is a 238-acre mesotrophic lake in Hubbard County, Minnesota with a maximum depth of 213 feet (81-foot average). Water quality is graded A based on 2 sampling years through 2024. The lake supports 15 documented fish species including black crappie, bluegill, and brook trout. Public access is available with 1 public boat landing. Compared to the 67 other monitored lakes in Hubbard County, Lasalle Lake ranks #54 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-23. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLimited data
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)
Moderate clarity, visible to about 6.9 ft. Phosphorus level: 8.5 µg/L. Chlorophyll-a: 7 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.9 ft | Not graded |
| Phosphorus | 8.5 µg/L | Good |
| Chlorophyll-a (Algae) | 7 µg/L | Good |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lasalle Lake
Compare lakeside cabins, hotels, and vacation rentals near Lasalle Lake in Hubbard 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
Lasalle Lake typically sits around 47°F at the surface in August. Summer average is about 47°F. Usually warmest in Jul (about 48°F) and coldest in May (about 45°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 421 field readings (2024–2025) via the EPA Water Quality Portal. See the full Lasalle Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 213 ft |
| Average Depth | 81 ft |
| Surface Area | 238 acres |
| Shoreline Length | 3.7 mi |
| Littoral Zone | 7% |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- La Salle Lake State Recreation AreaPublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Lasalle Lake
DNR Fisheries Survey Summary
6 surveys on file from MN DNR Fisheries. Most recent: 2025-08-05 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| IOD | 11.76 | — |
| CNM | 9.09 | — |
| Bluegill | 7.27 | 0.13 lb |
| Largemouth Bass | 6.44 | 0.67 lb |
| BKF | 4.39 | — |
| Bluntnose Minnow | 3.95 | — |
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
Largemouth Bass
From the 2025-08-05 survey
Temperature and dissolved oxygen (DO) measurements were collected from the deepest basin in LaSalle Lake on August 5th, 2025, to evaluate the quantity and quality of cold, oxygenated water (i.e., oxythermal habitat) available to Cisco, also known as Tullibee, the most sensitive coldwater species present in this lake.…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Lasalle Lake. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — LaSalleFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — LaSalle (1318)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — LaSallePublic Water Access Sites · MN DNR LakeFinder
Ice Season
Historical ice data from Minnesota DNR (25 observations).
Estimated open water season: 229 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2012-03-23 (2012) | 2018-05-01 (2018) |
| Ice-In | 1991-11-25 (1991) | 1999-12-20 (1999) |
Most recent ice-out: 2019-04-25
County Ranking
Ranked #54 of 68 lakes in Hubbard County
Nearby Lakes in Hubbard County
Frequently asked questions about Lasalle Lake
What is the water quality grade for Lasalle Lake?
- Lasalle Lake in Hubbard County, Minnesota has a water quality grade of A (Excellent). Water clarity: 6.9 ft visibility. Phosphorus: 8.5 µg/L. Chlorophyll-a (algae): 7 µg/L. Maximum depth: 213 ft. Surface area: 237.9 acres.
Is Lasalle Lake safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. Lasalle Lake has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 7 µg/L. Always check local health department advisories before swimming.
What is the water temperature of Lasalle Lake?
- Lasalle Lake typically sits around 47°F at the surface in August, from 421 EPA Water Quality Portal field readings (2024–2025). That is a typical value for the month, not a live reading.
How deep is Lasalle Lake?
- Lasalle Lake has a maximum depth of 213 feet and an average depth of 81 feet. The lake covers 237.9 acres.
What fish are in Lasalle Lake?
- Fish species found in Lasalle Lake include black crappie, bluegill, brook trout, greater redhorse, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, sunfish, tullibee (cisco), walleye, white sucker, yellow perch. Lasalle Lake is located in Hubbard County, Minnesota.
When does Lasalle Lake thaw?
- Lasalle Lake typically has ice-out around Apr 20. Ice typically forms around Dec 5. The open water season is approximately 229 days.
Are there boat ramps on Lasalle Lake?
- Lasalle Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include La Salle Lake State Recreation Area. Public access is listed as yes.
Explore Lasalle Lake across LakeGrade
Depth, room, public access, and the state wake-sport rules
Fish species and top-graded lakes across Minnesota
Fish species and best lakes in Hubbard County
Species activity outlook by water temperature and season
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Where to stay at Minnesota's top lakes, each with its grade
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Moderate nutrients, good water quality
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State Parks Near Lasalle Lake
Other Grade A Lakes in Minnesota
Mesotrophic Lakes in Minnesota
Where this data comes from
162 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA162 samples · 2024
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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