The State of Vermont's Lakes 2026

Cleanest lakes in Vermont

Cleanest combined nutrient and algae readings, 2026.

1. 1.Lake St. Catherine — Rutland County15.4 ft clarity · 13 µg/L P · 3 µg/L chl-a
2. 2.Malletts Bay Lake — Chittenden County13.8 ft clarity · 10 µg/L P · 4 µg/L chl-a
3. 3.Peacham Pond — Caledonia County15.6 ft clarity · 11 µg/L P · 2 µg/L chl-a
4. 4.Wallingford Pond — Rutland County7.1 ft clarity · 15 µg/L P · 4 µg/L chl-a
5. 5.Berlin Pond — Washington County21.7 ft clarity · 7 µg/L P · 1 µg/L chl-a
6. 6.Caspian Lake — Orleans County29.5 ft clarity · 8 µg/L P · 1 µg/L chl-a
7. 7.Harveys Lake — Caledonia County21.0 ft clarity · 8 µg/L P · 1 µg/L chl-a
8. 8.Maidstone Lake — Essex County28.5 ft clarity · 7 µg/L P · 2 µg/L chl-a
9. 9.Lake Groton — Caledonia County13.1 ft clarity · 11 µg/L P · 3 µg/L chl-a
10. 10.Rescue Lake — Windsor County15.1 ft clarity · 11 µg/L P · 2 µg/L chl-a

Highest measured algae

Highest measured chlorophyll-a (algae) concentration.

1. 1.Shelburne Pond — Chittenden County52 µg/L chlorophyll-a
2. 2.Jerome Lake — Addison County41 µg/L chlorophyll-a
3. 3.Lake Carmi — Franklin County20 µg/L chlorophyll-a

Trending lakes

Improving

1. 1.Lake St. Catherine — Rutland County
2. 2.Peacham Pond — Caledonia County
3. 3.Berlin Pond — Washington County
4. 4.Caspian Lake — Orleans County
5. 5.Harveys Lake — Caledonia County
6. 6.Lake Groton — Caledonia County
7. 7.Rescue Lake — Windsor County
8. 8.Lake Hortonia — Rutland County

Declining

1. 1.St. Albans Bay Lake — Franklin County
2. 2.Pond Known by Vtdec As Goulds — Windsor County
3. 3.Burlington Bay Lake — Chittenden County
4. 4.Port Henry Section Lake — Addison County
5. 5.Great Hosmer Pond — Orleans County
6. 6.Branch Pond — Bennington County
7. 7.Hardwood Pond — Lamoille County
8. 8.Bourn Pond — Bennington County