East Baton Rouge Parish County Lake Quality
Louisiana, 1 lake, average grade D (Nutrient-rich)
East Baton Rouge Parish County has 1 graded lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. On average, East Baton Rouge Parish County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
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 Capitol Lake (D); the most-stressed is Capitol Lake (D).
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Quick Answers for East Baton Rouge Parish County
Planning a trip? Check special fishing regulations for Capitol Lake — or check the official Louisiana fishing regulations.
All Lakes in East Baton Rouge Parish County
1 lake1 graded lake
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | DCapitol LakeEast Baton Rouge Parish | D | No recent samples | 310 µg/L | No recent samples | No recent samples | Not recorded |
Lake Match
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Six questions — swimming, fishing, quiet, cabins, drive time — and a shortlist of graded lakes that fit, with the water quality behind each one.
Other Counties in Louisiana
See how East Baton Rouge 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.