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

Lake County Lake Quality

Oregon, 124 lakes, measured by Oregon DEQ

Lake County in Oregon carries 124 monitored lakes — one of the lake-richer counties in our dataset. Coverage that dense usually reflects active lake-association sampling alongside state-agency monitoring. The 124 monitored lakes in Lake County carry whatever clarity, phosphorus, and chlorophyll-a readings Oregon DEQ 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.

Loading map…

Where to stay near Lake County

Top-rated places to stay near Lake County

Prices for Sep 18–20, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a trip to Lake County?

Get lake water-quality updates plus the best cabin & lodging deals near Lake County — straight to your inbox. No spam, unsubscribe anytime.

Quick Answers for Lake County

Cleanest lakes in Lake County →Cleanest lakes in Oregon →Best swimming lakes in Oregon →

Planning a trip? Check special fishing regulations for Pond — or check the official Oregon fishing regulations.

All Lakes in Lake County

124 lakes · 0 ranked on readings, 124 without enough sampling0 lakes ranked on readings · 124 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicAccess
PondLakeNo recent samples60 µg/LNo recent samplesNo recent samplesNot recorded
Hart LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Lake AbertLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Pelican LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Crump LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Dog LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Renner LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Albertson ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
South Arm ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Strawberry ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Holbrook ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Big Swamp ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lofton ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Cottonwood Meadow LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Patton MeadowLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Drews ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Junipers ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cottonwood ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Mill LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Moss FlatLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Butcher Flat ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dead Horse LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Thompson ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Duncan ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Foster LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Summer LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Loco LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Walking Plow LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Schoolhouse LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dutchy LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Rest LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Jacks LakesLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Ana ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Thorn LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bottomless LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Sevan LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Christmas Valley LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Beasley LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Schaub LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Silver LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Silver Creek ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Ward LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bull LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hassler LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Benjamin LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dry Lake WaterholeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Parachute PondLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
False WaterholeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hollow WaterholeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Pilot Lake ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Tired Horse ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Smokey WaterholeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
South DC WaterholeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
North Alkali LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Petroglyph LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Campbell LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Upper Campbell LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Flagstaff LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Turpin LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Stone Corral LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Reservoir LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bluejoint LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Skookum LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dog LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Feather Bed LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Twin LakesLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Binkey LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mule LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Colvin LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Fitzgerald ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Sid Luce ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Mugwump LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Swamp LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Anderson LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Priday ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bull LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Flynn ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Big ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Crump ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Crump LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Fisher LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Greaser ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Pelican LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Greaser ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Twentymile SloughLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Horsehead LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mud LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Long LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Moon LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Jack LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Weed LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
School Section LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mud Lake ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Calderwood ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Fish LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Robinson LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Wool LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
May LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Fortyfour LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Reservoir LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Thunderbird LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Spanish LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Fitzgerald LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Desert LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dobyns LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Fred PondLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mound LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Long LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cat LakesLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Jacobs ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Billy Burr LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Alger LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Link LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Shirk LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Piute ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Barry ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Little ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
M C ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Greaser LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Greaser ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Coleman LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
May LakeLakeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lucky ReservoirLakeNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Juniper LakeLakeNo 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.

Lake Match

Which lake suits how you actually use one?

Six questions — swimming, fishing, quiet, cabins, drive time — and a shortlist of lakes that fit, with the water quality behind each one.

Take the quiz →

Other Counties in Oregon

Wallowa County

13 lakes

Clackamas County

10 lakes

Washington County

3 lakes

Marion County

14 lakes

Linn County

22 lakes

Lane County

41 lakes

Browse every Oregon 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 Oregon Department of Environmental Quality. See data sources.