Kamouraska County Lake Quality
Québec, 2 lakes, average grade B (Good)
Kamouraska County has 2 graded lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. With an average grade of B, Kamouraska County sits comfortably above the Québec median.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Lac de L'Est (A); the most-stressed is Lac Saint-Pierre (B).
Quick Answers for Kamouraska County
Planning a trip? Check special fishing regulations for Lac de L'Est — or check the official Québec fishing regulations.
All Lakes in Kamouraska County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lac de L'Est | A | 11.2 ft | 5.2 µg/L |
| 2 | Lac Saint-Pierre | B | 9 ft | 11.1 µg/L |
Other Counties in Québec
See how Kamouraska County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 38 states.
Where to stay near Kamouraska County
Top-rated places to stay near Kamouraska County
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Source: EPA National Aquatic Resource Surveys, 2026.