Cesar Lake
Cesar Lake in Clearwater County, Minnesota has a water quality grade of A (Excellent). Water clarity: 11.2 ft visibility. Phosphorus: 17.5 µg/L. Chlorophyll-a (algae): 4.1 µg/L.
- Clarity
- 11.2 ft
- Type
- Mesotrophic
- Trend
- ↓ Declining
Next lake in Clearwater County
Cesar Lake is a mesotrophic lake in Clearwater County, Minnesota. Water quality is graded A based on 2 sampling years through 2025. Overall water quality is declining over recent sampling years. Compared to the 36 other monitored lakes in Clearwater County, Cesar Lake ranks #24 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-09. Grade methodology: LakeGrade methodology.
Watch Cesar Lake water quality
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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)
Good clarity, visible to about 11.2 ft. Phosphorus level: 17.5 µg/L. Chlorophyll-a: 4.1 µg/L. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.2 ft | Not graded |
| Phosphorus | 17.5 µg/L | Good |
| Chlorophyll-a (Algae) | 4.1 µg/L | Good |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Cesar Lake
Compare lakeside cabins, hotels, and vacation rentals near Cesar Lake in Clearwater 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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Fishing Cesar Lake
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.15 m/yr | 2 |
| Phosphorus | ↓ Declining | +4 µg/L/yr | 2 |
| Chlorophyll-a | ↓ Declining | +0.9 µg/L/yr | 2 |
County Ranking
Ranked #24 of 37 lakes in Clearwater County
Nearby Lakes in Clearwater County
Frequently asked questions about Cesar Lake
What is the water quality grade for Cesar Lake?
- Cesar Lake in Clearwater County, Minnesota has a water quality grade of A (Excellent). Water clarity: 11.2 ft visibility. Phosphorus: 17.5 µg/L. Chlorophyll-a (algae): 4.1 µg/L.
Is Cesar Lake safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. Cesar Lake has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 4.1 µg/L. Always check local health department advisories before swimming.
Explore Cesar Lake across LakeGrade
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Where this data comes from
34 measurements from 2 monitoring stations, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Chippewa Tribe, Minnesota (White Earth Band) (Tribal)
WEARTH_WQX34 samples · 2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- Turbidity by Nephelometry
Monitoring station identifiers (2)
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.