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LakeQuality
A storm cloud deck moving over Slim Lake at dusk, the last light breaking through low on the horizon

Eutrophic Lakes in Kentucky

56 eutrophic lakes in Kentucky. High nutrients, frequent algae, reduced clarity.

A eutrophic lake is a productive ecosystem with the trade-offs that come with productivity: more food at the base of the food web, more clarity reduction by mid-summer, more dissolved-oxygen variability near the bottom. 56 Kentucky 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 our A–F scale. The same nutrient richness that defines the trophic class drives the lower grade.

#LakeCountyGradeClarityDepthTSI
1Nolin LakeEdmonsonB5.5 ft-51
2Turner LakeBallardB--56
3Lake BeshearChristianB--53
4Moffit LakeUnionB--53
5Lake PeeweeHopkinsB--51
6Lake WashburnOhioB--53
7Pennyrile LakeChristianB--53
8Cap Mauzy LakeUnionB--53
9Providence City Lake NewWebsterB--53
10Greenbo LakeGreenupC--53
11Smoky Valley LakeCarterC--53
12Corinth LakeGrantC--53
13Panbowl LakeBreathittC--53
14Mill Creek LakeWolfeC--53
15Fishpond LakeLetcherC--53
16Combs LakeClayC--53
17Lake CannigoNicholasC--53
18Williamstown LakeGrantC--53
19Greenbrier Creek ReservoirMontgomeryC--53
20Sand Lick Creek LakeFlemingC--53
21Campbell County LakeCampbellC--53
22Long Run LakeJeffersonC--53
23Kincaid LakePendletonC--53
24Doe Run LakeKentonC--53
25Carpenters LakeDaviessC--59
26Kentucky LakeCallowayC--54
27Laurel Creek ReservoirMcCrearyC--53
28Cannon Creek LakeBellC--53
29Corbin City ReservoirLaurelC--53
30Herb Smith LakeHarlanC--53
31Wood Creek LakeLaurelC--53
32Chenoa LakeBellC--53
33Beulah LakeJacksonC--53
34Briggs LakeLoganC--54
35West Fork Drakes ReservoirSimpsonC--55
36Caneyville ReservoirGraysonC--63
37Forked LakeCarlisleC--60
38Beech Fork ReservoirPowellC--53
39Campbellsville City ReservoirTaylorD--66
40Guist Creek LakeShelbyD--65
41Taylor Fork LakeMadisonD--65
42Boltz LakeGrantD--56
43Bullock Pen LakeBooneD--57
44General Butler State Park LakeCarrollD--62
45Lake Elmer DavisOwenD--59
46Lake RebaMadisonD--64
47Herrington LakeGarrardD--63
48Lake JerichoHenryD--59
49Mill Creek LakeMonroeD--59
50Shelby LakeShelbyD--70
51Lake MorrisChristianD--62
52Energy LakeTriggD--56
53Spa LakeLoganD--57
54Kingfisher LakesDaviessD--63
55Honker LakeLyonD--55
56Benjy Kinman LakeHenryD--55
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 →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 →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 Kentucky lakes →

Source: EPA National Aquatic Resource Surveys, 2026.