French Lake vs Roberds Lake
Water quality, depth, fish species, and recreation comparison.
French Lake reads lower on nutrients and algae than Roberds Lake. Both are in Rice County, Minnesota.
French Lake and Roberds Lake are both in Minnesota — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. These two sit close on their nutrient and algae readings, French Lake versus Roberds Lake. The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.
With readings this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.
French Lake
Very murky, less than 1.7 ft of visibility.
Roberds Lake
Very murky, less than 2.5 ft of visibility.
Side-by-Side Metrics
| Metric | French Lake | Roberds Lake |
|---|---|---|
| Water Clarity | 1.7 ft | 2.5 ft Better |
| Phosphorus | 134 µg/L Better | 300 µg/L |
| Chlorophyll-a (Algae) | 46.3 µg/L Better | 86.7 µg/L |
| Maximum Depth | 56 ft Better | 43 ft |
| Surface Area | 876 acres | 632 acres |
| Public Access | Yes | Yes |
| Fish Species | 16 | 18 Better |
| Trophic State | hypereutrophic | hypereutrophic |
A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.
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Verdict
French Lake and Roberds Lake read the same on nutrients and algae overall. The tiebreakers come down to clarity (French Lake: 1.7 ft, Roberds Lake: 2.5 ft) and what you want from the lake. French Lake has fewer fish species than Roberds Lake.
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Where to stay near French Lake and Roberds Lake
Compare cabins, hotels, and vacation rentals around French Lake and Roberds Lake. Both lakes are pinned on the map, so you can see which stays sit nearer the one you pick. Switch to Satellite to see how close each is to the water.
Top-rated places to stay near French Lake and Roberds Lake
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Source: EPA National Aquatic Resource Surveys, 2026.