Renville County Lake Quality
Minnesota, 2 lakes, average grade D (Nutrient-rich)
Only 2 lakes in Renville County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. The county-wide average grade is D — water quality issues are persistent across most of the monitored basins. 1 lakes fall into the F bracket outright.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Allie Lake (C) is the cleanest in the county.
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Quick Answers for Renville County
Planning a trip? Check special fishing regulations for Allie Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Minnesota regulations index.
Fishing in Renville County
DNR Reports (6)
Minnesota DNR LakeFinder resources for lakes in Renville County. browse all reports →
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — PrestonFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — AllieFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — AllieFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — AlliePublic Water Access Sites · MN DNR LakeFinder
- —Fish Stocking History — PrestonFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — PrestonPublic Water Access Sites · MN DNR LakeFinder
All Lakes in Renville County
2 lakes2 graded lakes
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|---|
| 1 | CAllie LakeRenville | C | 3 ft | 214 µg/L | 13.8 µg/L | No recent samples | 12 ft | ✓ Public |
| 2 | FPreston LakeRenville | F | 5 ft | 222 µg/L | 39.2 µg/L | No recent samples | 11 ft | ✓ Public |
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Other Counties in Minnesota
See how Renville County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 39 states and 2 Canadian provinces.
Source: EPA National Aquatic Resource Surveys, 2026.