What are mesotrophic lakes in Indiana?

27 mesotrophic lakes in Indiana. Moderate nutrients, good water quality.

What does mesotrophic mean?

Moderate nutrients, good water quality.

Mesotrophic Lakes in Indiana

Most well-managed working lakes register as mesotrophic — the band that balances productivity with clarity. 27 lakes in Indiana sit in the mesotrophic band. About 52% are deep (50+ ft); the rest are shallower basins where watershed management keeps nutrients from pushing the system into eutrophy.

Mesotrophic lakes sit in the middle of the phosphorus and chlorophyll-a range: productive but still clear, with readings that rarely reach the EPA's poorest condition class.

#	Lake	County	Clarity	Depth	TSI
1	Lake Wawasee	Kosciusko	5.9 ft	-	52
2	Lake Pleasant	Steuben	-	51.8 ft	-
3	Myers Lake	Marshall	-	59.1 ft	-
4	Lake Maxinkuckee	Marshall	-	87.9 ft	-
5	Adams Lake	LaGrange	-	90.9 ft	-
6	Big Long Lake	LaGrange	-	82 ft	-
7	Oswego Lake	Kosciusko	9.9 ft	-	44
8	Big Chapman Lake	Kosciusko	6.9 ft	-	49
9	Tippecanoe Lake	Kosciusko	8.5 ft	-	46
10	James Lake	Kosciusko	5.3 ft	-	53
11	Grand Calumet Lagoon Lake	Lake	-	-	49
12	Crooked Lake	Steuben	-	85 ft	-
13	Barton Lake	Steuben	-	30 ft	-
14	Lawrence Lake	Marshall	-	63 ft	-
15	Brookville Lake	Union	-	-	-
16	Royer Lake	LaGrange	-	49.9 ft	-
17	Fish Lake	LaGrange	-	75.1 ft	-
18	Martin Lake	LaGrange	-	55.1 ft	-
19	Oliver Lake	LaGrange	-	89.9 ft	-
20	Lake of the Woods	LaGrange	-	-	-
21	Yellowwood Lake	Brown	-	29.9 ft	-
22	Papakeechie Lake	Kosciusko	-	40 ft	-
23	Sparta Lake	Noble	-	-	-
24	Round Lake	Noble	-	65.9 ft	-
25	Goose Lake	Whitley	-	65.9 ft	-
26	Shriner Lake	Whitley	-	74.1 ft	-
27	Cedar Lake	Whitley	-	75.1 ft	-

All mesotrophic lakes →Minnesota version →Wisconsin version →Illinois version →Michigan version →Iowa version →Ohio version →Pennsylvania version →New York version →Missouri version →North Dakota version →South Dakota version →Florida version →Colorado version →North Carolina version →Vermont version →Texas version →Oregon version →Arkansas version →Oklahoma version →Kansas version →Nebraska version →Nevada version →Arizona version →Idaho version →Montana version →New Mexico version →Tennessee version →Alabama version →Virginia version →Kentucky version →Utah version →Washington version →Wyoming version →Georgia version →Massachusetts version →Ontario version →Québec version →Nova Scotia version →British Columbia version →Newfoundland and Labrador version →All Indiana lakes →

Source: EPA National Aquatic Resource Surveys, 2026.