What are hypereutrophic lakes in Florida?

163 hypereutrophic lakes in Florida. Very high nutrients, dense algae, poor clarity.

What does hypereutrophic mean?

Very high nutrients, dense algae, poor clarity.

Hypereutrophic Lakes in Florida

Hypereutrophic lakes (TSI above 70) are at the upper end of the productivity scale: visible algal blooms most weeks of summer, clarity often under 3 feet, and meaningful risk of harmful-algal-bloom toxin events. 163 hypereutrophic lakes are on the Florida books. Almost none of them are deep — 0% break 50 feet. Shallow basin plus heavy nutrient input is the consistent recipe.

Hypereutrophic lakes carry the highest phosphorus and chlorophyll-a readings on record; the trophic class and the readings are measuring closely related dimensions of the same underlying nutrient regime.

#	Lake	County	Clarity	Depth	TSI
1	Polk-Little Bass Lake	Polk	1.3 ft	-	82
2	Alicetst Lake	Alachua	3.3 ft	-	76
3	Polk-Big Bass Lake	Polk	1 ft	-	84
4	Lake Roberta	Hillsborough	1.3 ft	-	73
5	Megginnis Arm Off Crowder Landing Lake	Leon	1 ft	-	71
6	Highlands-Josephine West Lake	Highlands	1.5 ft	-	70
7	Lwc Lake	Brevard	1.6 ft	-	71
8	Highlands-Wolf Lake	Highlands	1 ft	-	80
9	Febin Lake	Glades	1 ft	-	77
10	Ncenter Lake	Okeechobee	1 ft	-	75
11	Bcl Lake	Indian River	2 ft	-	74
12	Alligator Lake	Pinellas	2.6 ft	-	70
13	Trout Lk Eus Lake	Lake	1.8 ft	-	70
14	Ft Meade Pit Ne Lake	Polk	1.5 ft	-	75
15	Indian River-Blue Cypress Lake	Indian River	2 ft	-	73
16	Rosslake	Putnam	1.3 ft	-	72
17	Lksuggs Lake	Putnam	1.6 ft	-	73
18	Polk-Boca Cove Lake	Polk	1.4 ft	-	80
19	Seminole-Jesup North Lake	Seminole	1 ft	-	73
20	Sarasota-Cormorant Lake	Sarasota	2.4 ft	-	71
21	Irvin Lake	Hernando	1.3 ft	-	76
22	Hernando-Mountain Lake	Hernando	2.3 ft	-	71
23	Lake Monroe	Volusia	1.6 ft	-	72
24	Carter Rd Y Pit Lake	Polk	2.5 ft	-	78
25	Lake of the Woods	Orange	1.3 ft	-	72
26	Tiger Lake	Polk	1 ft	-	76
27	Polk-Flora Lake	Polk	1.5 ft	-	77
28	Saddle Crk Pk Z Lake	Polk	2 ft	-	72
29	Marion-Charles Lake	Marion	1 ft	-	71
30	Lake Richmond	Orange	1 ft	-	71
31	Lake Seminole	Pinellas	1 ft	-	71
32	Alachua-Newnan Lake	Alachua	1.3 ft	-	77
33	New Lake	Alachua	1 ft	-	72
34	Marion-Eaton Lake	Marion	0.8 ft	-	74
35	Goosecent Lake	Putnam	1.6 ft	-	77
36	Sarasota-Uplands Lake	Sarasota	0.8 ft	-	84
37	Polk-Gaskin'S Cut Lake	Polk	1.4 ft	-	81
38	Ruthlkecen Lake	Brevard	1.3 ft	-	71
39	Sarasota-Upper Myakka Lake	Sarasota	2 ft	-	79
40	Saddle Crk Pk X Lake	Polk	1.8 ft	-	72
41	Alachua-Little Orange Lake	Alachua	2.8 ft	-	70
42	Pinellas-Jungle Lake	Pinellas	2.3 ft	-	75
43	Lake Hancock	Polk	1 ft	-	81
44	Lake Okeechobee	Palm Beach	1 ft	-	77
45	Florencelk Lake	Brevard	1.3 ft	-	75
46	Bonnet-Col Lake	Polk	0.8 ft	-	81
47	Hillsborough-Weeks Lake	Hillsborough	1.4 ft	-	77
48	Lake Thonotasassa Center	Hillsborough	1.3 ft	-	81
49	Horney-Col Lake	Polk	1.6 ft	-	71
50	Alachua-Kingswood Lake	Alachua	2.5 ft	-	70
51	Apopka Lake	Orange	1.6 ft	-	75
52	Lake Seminole	Pinellas	1 ft	-	72
53	Lkcondel Lake	Orange	1.6 ft	-	73
54	Eastshore Lake	Martin	1 ft	-	76
55	Bivens Arm Lake	Alachua	1 ft	-	77
56	Twin Lakes	Okaloosa	2 ft	-	81
57	Ft Meade Pit Sw Lake	Polk	1.8 ft	-	76
58	Morton-Col Lake	Polk	1.3 ft	-	70
59	Dead Lake	Flagler	1.6 ft	-	77
60	Carter Rd X Pit Lake	Polk	3.1 ft	-	78
61	Hillsborough-Mystik Lake	Hillsborough	2.5 ft	-	76
62	Hillsborough-Stearns Lake	Hillsborough	2 ft	-	74
63	Hillsborough-Michaela Lake	Hillsborough	1.5 ft	-	76
64	Kinsale Lake	Leon	1.6 ft	-	72
65	Lake Lorraine	Volusia	2 ft	-	71
66	Lt Banana Lake	Polk	1.6 ft	-	71
67	Twin Lake South Lobe	Okaloosa	2 ft	-	80
68	Sarasota-Vaas Lake	Sarasota	1.7 ft	-	80
69	Tgrlke Lake	Polk	1.1 ft	-	77
70	Lkemerld Lake	Orange	1.6 ft	-	70
71	Tallavana Lake	Gadsden	1 ft	-	81
72	Bivensarm Lake	Alachua	0.7 ft	-	81
73	Pinellas-Saundra Lake	Pinellas	1.3 ft	-	72
74	Hillsborough-Thonotosassa Lake	Hillsborough	1.5 ft	-	79
75	Lake Marian Pavilion	Osceola	0.8 ft	-	80
76	Sparkman Lake @ Center	Hernando	1 ft	-	78
77	Charlotte-Sunapee Lake	Charlotte	1.8 ft	-	71
78	Pinellas-Alligator Lake	Pinellas	2.2 ft	-	71
79	Orange-Odell Lake	Orange	1.5 ft	-	76
80	Lake Thonotosassa	Hillsborough	1.3 ft	-	82
81	Lkfairho Lake	Orange	1 ft	-	76
82	Pasco-Conley Lake	Pasco	1 ft	-	74
83	Hammocklak Lake	Alachua	1.3 ft	-	78
84	Hillsborough-Grady Lake	Hillsborough	1.8 ft	-	70
85	Pinellas-Jungle North Inlet Lake	Pinellas	1.5 ft	-	75
86	Blanton Lake South Lobe	Pasco	2 ft	-	71
87	Hancock Outflow Lake	Polk	0.7 ft	-	88
88	Lake Istokpoga	Highlands	1 ft	-	71
89	Sarasota-Lower Myakka Lake	Sarasota	2.2 ft	-	75
90	Saddle Creek Pk Z Lake	Polk	2.1 ft	-	73
91	Venice Gardens Lake	Sarasota	1 ft	-	78
92	Hancock P Lake	Polk	0.7 ft	-	88
93	Saddle Creek Pk X Lake	Polk	2 ft	-	72
94	Monroe-Desbiens Lake	Monroe	2.5 ft	-	74
95	Middle of Lake Francis	Madison	1.6 ft	-	72
96	Alachua-Alice Lake	Alachua	5 ft	-	73
97	Waldenlake	Hillsborough	1.1 ft	-	78
98	Lake Vedra	St. Johns	2.3 ft	-	77
99	Micklers Lake	St. Johns	1.7 ft	-	73
100	Denham Lake	Lake	0.8 ft	-	74

All hypereutrophic lakes →Minnesota version →Wisconsin version →Illinois version →Michigan version →Iowa version →Ohio version →Pennsylvania version →New York version →Missouri version →Indiana version →North Dakota version →South Dakota 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 Florida lakes →

Source: EPA National Aquatic Resource Surveys, 2026.