Little Round Lake
Little Round Lake in Crow Wing County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 16.5 ft visibility.
- Clarity
- 16.5 ft
- Typical in August
- 76°F
- Trend
- ↑ Improving
- Public access
- No
Next lake in Crow Wing County
Why Little Round 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 Little Round 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.
Little Round Lake is a lake in Crow Wing County, Minnesota. Overall water quality is improving over recent sampling years. Limited fish-species data available. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-24. Grade methodology: LakeGrade methodology.
Watch Little Round Lake water quality
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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 Little Round Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Crystal clear, you can see 16.5 ft down. Trophic State Index: 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 16.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Little Round Lake
Compare lakeside cabins, hotels, and vacation rentals near Little Round Lake in Crow Wing 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 Little Round Lake
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Water Temperature
Little Round Lake typically sits around 76°F at the surface in August. Summer average is about 72°F. Usually warmest in Aug (about 76°F) and coldest in May (about 63°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 10 field readings (2025–2025) via the EPA Water Quality Portal. See the full Little Round Lake water temperature breakdown →
Fishing Little Round Lake
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.041 m/yr | 6 |
| Phosphorus | ↑ Improving | -0.24 µg/L/yr | 6 |
| Chlorophyll-a | ↑ Improving | -0.06 µg/L/yr | 6 |
EPA Impairment Status
Little Round Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit MN18-0361-00 · Official waterbody report · Matched by proximity (2 km)
Graded lakes near Little Round Lake
Little Round Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Crow Wing County
Frequently asked questions about Little Round Lake
What is the water quality grade for Little Round Lake?
- Little Round Lake in Crow Wing County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 16.5 ft visibility.
Is Little Round Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Little Round 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 Little Round Lake?
- Little Round Lake typically sits around 76°F at the surface in August, from 10 EPA Water Quality Portal field readings (2025–2025). That is a typical value for the month, not a live reading.
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Where this data comes from
41 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA41 samples · 2020–2025
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)