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

St. Bernard County Lake Quality

Louisiana, 49 lakes, measured by LDEQ

St. The county-level average smooths over real differences — a single agricultural watershed near the southwest corner can pull the average down even if the rest of the county runs clean. The 49 monitored lakes in St. Bernard County carry whatever clarity, phosphorus, and chlorophyll-a readings LDEQ 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 St. Bernard County

Top-rated places to stay near St. Bernard County

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Quick Answers for St. Bernard County

Cleanest lakes in St. Bernard County →Best swimming lakes in Louisiana →

Planning a trip? Check special fishing regulations for Antonios Lagoon — or check the official Louisiana fishing regulations.

All Lakes in St. Bernard County

49 lakes · 0 ranked on readings, 49 without enough sampling0 lakes ranked on readings · 49 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicAccess
Antonios LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bayou BatolaSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bayou CatilanoSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bayou MuscleSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bayou PisanaSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bernard LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Biloxi LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Blind LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bobs LakesSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bottle LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Brick LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Busters BayouSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cochon BaySt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Crooked BayouSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cutoff LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Deep PassSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Drum HoleSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Drum LakeSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Flat BaySt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Goose FlatSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Grand LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Halfmoon LakeSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Halfmoon Pass BaySt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hopedale LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Joe Shiman PassSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lagoon BradySt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lagoon GiraudSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake AmedaSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake AthanasioSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake EloiSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake EugenieSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake Jean Louis RobinSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake of the MoundSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lakes of Bayou MarronSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lena LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Little Halfmoon BaySt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Long LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Magill LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Magnolia LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Muscle BaySt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Negro LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Oyster BaySt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Petain LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Petes LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Portman LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Redfish BayouSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Stump LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Tanasia LagoonSt. BernardNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Whiskey BayouSt. BernardNo 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 Louisiana

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1 lake

Vernon Parish County

2 lakes

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St. Charles Parish County

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Rapides Parish County

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