Eutrophic Lakes in Texas

108 eutrophic lakes in Texas. High nutrients, frequent algae, reduced clarity.

Eutrophic lakes — TSI 50 to 70 — are nutrient-rich and productive, with persistent summer algal communities that drive visible reductions in clarity. These conditions are not failures; they reflect a lake doing what nutrient-loaded waters do. 108 {{stateName}} lakes register as eutrophic. Only 0% are deep — eutrophy correlates with shallowness, agricultural watersheds, and the kind of nutrient-input history that takes decades to shift.

Eutrophic lakes typically grade C or D on the LakeGrade rubric. The same nutrient richness that defines the trophic class drives the lower grade.

#	Lake	County	Grade	Clarity	Depth	TSI
1	Lake Meredith	Hutchinson	B	5.3 ft	-	51
2	Lake Cisco	Eastland	B	3.9 ft	-	52
3	Oak Creek Reserv Lake	Coke	B	3.8 ft	-	52
4	Lake Mackenzie	Briscoe	B	1.8 ft	-	56
5	Whitney Lake	Hill	B	4.8 ft	-	53
6	Ray Roberts Lake Site	Denton	B	3.9 ft	-	54
7	Lake Coleman	Coleman	B	3.9 ft	-	52
8	Lake Alan Henry	Garza	B	9.4 ft	-	51
9	Lake Athens	Henderson	B	5.9 ft	-	52
10	Marine Creek Lake	Tarrant	B	3.3 ft	-	55
11	Red Bluff Reservoir	Reeves	B	1.9 ft	-	58
12	Lake Georgetown	Williamson	B	5.6 ft	-	51
13	Lake Jacksboro Mid Lake	Jack	B	3.6 ft	-	52
14	Grapevine Lake	Tarrant	C	2.4 ft	-	61
15	Lake J B Thomas	Scurry	C	1.6 ft	-	60
16	Ray Roberts Lake	Cooke	C	2.6 ft	-	58
17	Lake Fk Reservoir	Wood	C	1.9 ft	-	65
18	Lavon Lake	Collin	C	1.6 ft	-	66
19	Hubbard Creek Reservoir	Stephens	C	3.1 ft	-	55
20	Lynchburg Reservoir	Harris	C	1.1 ft	-	65
21	Greenbelt Lake	Donley	C	2.1 ft	-	59
22	Lake Whitney	Bosque	C	3.1 ft	-	59
23	Bois D'Arc Lake	Fannin	C	2.4 ft	-	61
24	Possum Kingdom Lake	Stephens	C	3.9 ft	-	56
25	Lake Bob Sandlin	Camp	C	3.9 ft	-	57
26	Hords Creek Reserv Lake	Coleman	C	2.6 ft	-	55
27	Houston County Lake	Houston	C	3 ft	-	58
28	Lake Brownwood N End of Dam	Brown	C	4.3 ft	-	54
29	Lake Palo Pinto	Palo Pinto	C	3.9 ft	-	56
30	White River Lake	Crosby	C	0.6 ft	-	66
31	Sam Rayburn Reservoir	San Augustine	C	3.9 ft	-	56
32	Sam Rayburn Reservoir	Jasper	C	5.2 ft	-	53
33	Lake Graham	Young	C	3.6 ft	-	58
34	Walter E Long Lake Eastern Arm	Travis	C	4.2 ft	-	56
35	Twin Buttes Reserv Lake	Tom Green	C	3.6 ft	-	59
36	Lake Sweetwater Mid Lake	Nolan	C	3.6 ft	-	54
37	Walter E Long Lake Mid Lake	Travis	C	3.6 ft	-	57
38	Lake Nasworthy Middle Concho	Tom Green	C	1.5 ft	-	60
39	Walter E Long Lake Western Arm	Travis	C	4.9 ft	-	55
40	Lake Nasworthy S Concho Arm	Tom Green	C	1 ft	-	62
41	Lake Nasworthy	Tom Green	C	1.8 ft	-	59
42	Amistad Reserv Devils R Arm Lake	Val Verde	C	6.6 ft	-	51
43	Lost Creek Reservoir Mid Lake	Jack	C	4.3 ft	-	54
44	Toledo Bend Reservoir Southwest of Haddens	Newton	C	-	-	61
45	Lewisville Lake	Denton	C	1.8 ft	-	63
46	Lake Texoma	Grayson	C	2.2 ft	-	63
47	Navarro Mills Lake	Navarro	C	2.2 ft	-	64
48	Conquistador Lake	Lubbock	C	1 ft	-	67
49	Lake Gladewater	Upshur	C	3 ft	-	60
50	Cooper Lake	Delta	C	2.4 ft	-	63
51	Lake Brownwood	Brown	C	1.8 ft	-	63
52	B A Steinhagen Reservoir	Jasper	C	1.1 ft	-	64
53	Grapevine Reservoir Mid Lake	Tarrant	C	3.1 ft	-	59
54	Grapevine Lake Northwest	Denton	C	2.4 ft	-	62
55	Lake Gilmer	Upshur	C	3 ft	-	60
56	Twin Buttes Reservoir	Tom Green	C	1.2 ft	-	65
57	Purtis Creek Lake	Henderson	C	3 ft	-	61
58	Cooper Lake Site	Hopkins	C	2.7 ft	-	62
59	Lake Tyler E	Smith	C	3.3 ft	-	58
60	Lake Tyler	Smith	C	3.4 ft	-	58
61	Leon Reservoir	Eastland	C	1.8 ft	-	63
62	Aquilla Reserv Aquilla Creek Arm Lake	Hill	C	2.2 ft	-	64
63	Upper Pat Mayse Reservoir	Lamar	C	3.1 ft	-	58
64	Fairfield Lake	Freestone	C	3.2 ft	-	60
65	Tradinghouse Creek Reservoir	McLennan	C	2.7 ft	-	60
66	Pat Mayse Reservoir	Lamar	C	3.9 ft	-	57
67	Sam Rayburn Reserv Lake	Nacogdoches	C	0.7 ft	-	69
68	Lake Waco	McLennan	C	2.3 ft	-	62
69	Lewisville Lake Site	Denton	C	2.4 ft	-	61
70	Impoundment Lake	Bexar	C	-	-	63
71	Lake Eddleman	Young	C	1.2 ft	-	63
72	Lake Ray Hubbard	Rockwall	D	2 ft	-	65
73	Lake Conroe	Montgomery	D	2.2 ft	-	65
74	Lake Palestine	Smith	D	2 ft	-	66
75	Jim L Chapman Lake	Delta	D	1.2 ft	-	69
76	Lake Kiowa	Cooke	D	0.8 ft	-	70
77	Lake Murvaul	Panola	D	2.1 ft	-	66
78	Lake Whitney	Bosque	D	1.6 ft	-	67
79	Lake Cypress Springs	Franklin	D	2.3 ft	-	66
80	O C Fisher Reservoir	Tom Green	D	1 ft	-	69
81	Wright Patman Lake	Bowie	D	2.2 ft	-	64
82	Lake O the Pines Mid Lake	Marion	D	2.7 ft	-	61
83	Lake O the Pines	Marion	D	2.5 ft	-	63
84	Lake Cypress Springs Mid Lake	Franklin	D	2.6 ft	-	63
85	Pat Cleburne Reservoir	Johnson	D	2.4 ft	-	64
86	Wright Patman Lake Site	Cass	D	1.8 ft	-	66
87	Aquilla Reservoir	Hill	D	2.1 ft	-	64
88	Big Creek Lake	Delta	D	1.5 ft	-	67
89	Sam Rayburn Reservoir	Angelina	D	1.6 ft	-	68
90	Sam Rayburn Lake	Nacogdoches	D	0.8 ft	-	69
91	Sam Rayburn Reservoir	San Augustine	D	1.3 ft	-	67
92	Sam Rayburn Reservoir	San Augustine	D	1.8 ft	-	64
93	Lake Weatherford	Parker	D	2.2 ft	-	67
94	Lake Fort Phantom Hill	Jones	D	2.5 ft	-	63
95	Lake Amon G Carter	Montague	D	2.3 ft	-	63
96	Lake Opines	Marion	D	2 ft	-	66
97	Lake Waco N Bosque Arm	McLennan	D	1.3 ft	-	66
98	Lake Palestine Cwqmn Site	Henderson	D	2.1 ft	-	65
99	Lake Stamford	Haskell	D	2 ft	-	65
100	Lake Tawakoni	Hunt	D	1.5 ft	-	69

All eutrophic 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 →Florida version →Colorado version →North Carolina version →Vermont version →All Texas lakes →

Source: EPA National Aquatic Resource Surveys, 2026.