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C

Livingston Parish County Lake Quality

Louisiana, 25 lakes, average grade C (Fair)

Livingston Parish County's 25 graded lakes fall in the moderate-density bracket for Louisiana. 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 county average is C — the middle of the rubric, with one or two lakes pulling the average up or down depending on year.

The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Lake Maurepas East-Northeast of Maurepas (C); the most-stressed is Lake Maurepas Southeast of Maurepas (D).

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Quick Answers for Livingston Parish County

Cleanest lakes in Livingston Parish County →Cleanest lakes in Louisiana →Safest swimming lakes in Louisiana →

Planning a trip? Check special fishing regulations for Lake Maurepas East-Northeast of Maurepas — or check the official Louisiana fishing regulations.

All Lakes in Livingston Parish County

25 lakes · 11 graded, 14 not rated11 graded lakes · 14 not rated, hidden

#LakeGradeClarityPhosphorusAlgaeTrophicAccess
1CLake Maurepas East-Northeast of MaurepasLivingston ParishCNo recent samplesNo recent samples15.8 µg/LNo recent samplesNot recorded
2CLake Maurepas East of MaurepasLivingston ParishCNo recent samples180 µg/L23.4 µg/LNo recent samplesNot recorded
3CLake Maurepas North-Northwest of LaplaceLivingston ParishCNo recent samples140 µg/L12.8 µg/LNo recent samplesNot recorded
4CLake Maurepas North of ReserveLivingston ParishCNo recent samplesNo recent samples17.1 µg/LNo recent samplesNot recorded
5CLake Maurepas South of KillianLivingston ParishCNo recent samples160 µg/L17.2 µg/LNo recent samplesNot recorded
6CLake Maurepas South of SpringfieldLivingston ParishCNo recent samplesNo recent samples22.2 µg/LNo recent samplesNot recorded
7CLake Maurepas South-Southeast of KillianLivingston ParishCNo recent samplesNo recent samples23.7 µg/LNo recent samplesNot recorded
8CLake Maurepas West-Northwest of AkersLivingston ParishCNo recent samplesNo recent samples20.2 µg/LNo recent samplesNot recorded
9CLake Maurepas West of AkersLivingston ParishCNo recent samplesNo recent samples14.2 µg/LNo recent samplesNot recorded
10CLake Maurepas West-Southwest of AkersLivingston ParishCNo recent samplesNo recent samples17.7 µg/LNo recent samplesNot recorded
11DLake Maurepas Southeast of MaurepasLivingston ParishDNo recent samples170 µg/LNo recent samplesNo recent samplesNot recorded
NRLake Maurepas East-Northeast of French SettlementLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas East-Northeast of Saint AmantLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas East of French SettlementLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas East-Southeast of French SettlementLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas East-Southeast of Port VincentLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas North-Northeast of Mount AiryLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas North-Northeast of PaulinaLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas North of Mount AiryLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas South-Southeast of HoldenLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas South-Southwest of HammondLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas South-Southwest of NatalbanyLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas Southeast of HoldenLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas Southwest of NatalbanyLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake Maurepas Southwest of PonchatoulaLivingston ParishNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = not rated: the monitoring record does not meet the evidence bar for a grade. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.

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Other Counties in Louisiana

Orleans Parish County

1 lake · Avg grade A

Vernon Parish County

2 lakes · Avg grade C

Bossier Parish County

2 lakes · Avg grade C

Natchitoches Parish County

2 lakes · Avg grade C

St. Charles Parish County

7 lakes · Avg grade C

Rapides Parish County

4 lakes · Avg grade C

See how Livingston Parish County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 49 states and 2 Canadian provinces.

Source: EPA National Aquatic Resource Surveys, 2026.