Aaron Lake vs Latoka Lake
Water quality, depth, fish species, and recreation comparison.
Latoka Lake has a higher water quality grade (A, Excellent) than Aaron Lake (C, Fair). Both are in Douglas County, Minnesota.
Aaron Lake and Latoka 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. Latoka Lake (A) is materially cleaner than Aaron Lake (C). A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.
For a recreational visitor, the wider grade gap is decisive — Latoka Lake is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?
Aaron Lake
Moderate clarity, visible to about 7 ft.
Latoka Lake
Crystal clear, you can see 19 ft down.
Side-by-Side Metrics
| Metric | Aaron Lake | Latoka Lake |
|---|---|---|
| Overall Grade | C (Fair) | A (Excellent) |
| Water Clarity | 7 ft | 19 ft |
| Phosphorus | No data | 11 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 16 ft | 108 ft |
| Surface Area | 610.3 acres | 766.63 acres |
| Public Access | Yes | Yes |
| Fish Species | 1 | 1 |
| Trophic State | mesotrophic | oligotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Latoka Lake wins on overall water quality with a Grade A versus Aaron Lake's Grade C. Water clarity: 19 ft vs 7 ft. For fishing diversity, Latoka Lake also leads with 1 species.