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LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water
NR

Teton County Lake Quality

Wyoming, 57 lakes — no lake here has enough monitoring data for a grade

Teton County in Wyoming carries 57 monitored lakes — one of the lake-richer counties in our dataset. Coverage that dense usually reflects active lake-association sampling alongside state-agency monitoring. No lake in Teton County has enough sampling behind it for an A–F grade yet. The 57 monitored lakes below carry whatever clarity, phosphorus, and chlorophyll-a measurements exist.

Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.

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Where to stay near Teton County

Top-rated places to stay near Teton County

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Quick Answers for Teton County

Cleanest lakes in Teton County →Safest swimming lakes in Wyoming →

Planning a trip? Check special fishing regulations for West Thumb Lake — or check the official Wyoming fishing regulations.

All Lakes in Teton County

57 lakes · 0 graded, 57 not rated0 graded lakes · 57 not rated, hidden

#LakeGradeClarityPhosphorusAlgaeTrophicAccess
NRWest Thumb LakeTetonNR31.2 ftNo recent samplesNo recent samplesNo recent samplesNot recorded
NRYellowstone LakeTetonNR28.7 ftNo recent samplesNo recent samplesNo recent samplesNot recorded
NRColter North Dock LakeTetonNR9.8 ftNo recent samplesNo recent samplesNo recent samplesNot recorded
NRInlet Arizona Island LakeTetonNR17.5 ftNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLeeks Marina North LakeTetonNR16.4 ftNo recent samplesNo recent samplesNo recent samplesNot recorded
NRMoran Bay LakeTetonNR18.3 ftNo recent samplesNo recent samplesNo recent samplesNot recorded
NRColter South Dock LakeTetonNR12.2 ftNo recent samplesNo recent samplesNo recent samples✓ Public
NRLeigh LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRString LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake SolitudeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRCirque LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRSnowdrift LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRJenny LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
NRBradley LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRTaggart LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRPhelps LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLower Slide LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
NRBlue Miner LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRUpper Slide LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRSoda LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLunch LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRMosquito LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NREnos LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRTracy LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRElk Ranch ReservoirTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRSwan LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRChristian PondTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NREmma Matilda LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRTwo Ocean LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLewis LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRShoshone LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRRiddle LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRDelusion LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRHeart LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRAlder LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRTrail LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRBridger LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRDryad LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRBeach LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRChickadee LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRDuck LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRDe Lacy LakesTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRDe Lacy LakesTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRSummit LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRGoose LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRMallard LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRBeula LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRHering LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake of the WoodsTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRFish LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLoon LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRRock LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRWinegar LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLilypad LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRRanger LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRIndian LakeTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRBergman ReservoirTetonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.

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Other Counties in Wyoming

Johnson County

32 lakes · Avg grade B

Sublette County

117 lakes · Avg grade B

Natrona County

36 lakes · Avg grade B

Crook County

9 lakes · Avg grade B

Sheridan County

11 lakes · Avg grade B

Albany County

67 lakes · Avg grade B

See how Teton County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..

Source: EPA National Aquatic Resource Surveys, 2026.