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

Fresno County Lake Quality

California, 88 lakes, measured by SWRCB

Fresno County has 88 monitored lakes, enough that within-county variation matters as much as the county average. Some are deep glacial basins, others are shallow agricultural-watershed waters, and the measurements reflect that mix. The 88 monitored lakes in Fresno County carry whatever clarity, phosphorus, and chlorophyll-a readings SWRCB has published, shown as reported.

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 Fresno County

Top-rated places to stay near Fresno County

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Quick Answers for Fresno County

Cleanest lakes in Fresno County →Best swimming lakes in California →

Planning a trip? Check special fishing regulations for Alsace Lake — or check the official California fishing regulations.

All Lakes in Fresno County

88 lakes · 0 ranked on readings, 88 without enough sampling0 lakes ranked on readings · 88 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicAccess
Alsace LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Ambition LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Anne LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Avocado LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Beetlebug LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bench LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Big Margaret LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bighorn LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Black Rock ReservoirFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cardinal LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cathedral LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cliff LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Courtright ReservoirFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Coyote LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Davis LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Desolation LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Devils BathtubFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Devils PunchbowlFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Duck LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dumbbell LakesFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Evolution LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Florence LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Fourth Recess LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
French LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Gardiner LakesFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Goethe LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Golden LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Granite LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Grinnell LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Halfmoon LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Helen LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hell for Sure LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Helmke PondFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hume LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Huntington LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Ladder LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake ItalyFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake JoallanFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake MarjorieFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake Thomas A EdisonFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake VirginiaFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Little LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Little Panoche ReservoirFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lost LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mammoth Pool ReservoirFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Marie LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Martha LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Martin PondFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
McGee LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mcgee Outlet LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Merriam LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mesa LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Millerton LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Muriel LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Olive LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Packsaddle LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Palisade LakesFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Paris LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Payne LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Pearl LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Peter Pande LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Pine Flat LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Pioneer Basin LakesFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Puppet LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Purple LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Rae LakesFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Ramona LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Red and White LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Redinger LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Rose LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Rosy Finch LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Royce LakesFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Sapphire LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Sequoia LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Shaver LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Silver Pass LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Star LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Steelhead LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Three Island LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Tunemah LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Vee LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Volcanic LakesFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Wanda LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Warrior LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Willow LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Wishon ReservoirFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Woodchuck LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Woods LakeFresnoNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.

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Other Counties in California

Plumas County

19 lakes

Amador County

12 lakes

Placer County

16 lakes

Butte County

16 lakes

Nevada County

35 lakes

Santa Clara County

13 lakes

Browse every California lake, or the full directory of lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..

Source: the California State Water Resources Control Board. See data sources.