Walthall County Lake Quality
Mississippi, 1 lake, average grade B (Good)
Only 1 lakes in Walthall County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. The county-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.
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 Walthall (B); the most-stressed is Lake Walthall (B).
Where to stay near Walthall County
Top-rated places to stay near Walthall County
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 Walthall County?
Get lake water-quality report cards plus the best cabin & lodging deals near Walthall County — straight to your inbox. No spam, unsubscribe anytime.
Quick Answers for Walthall County
Planning a trip? Check special fishing regulations for Lake Walthall — or check the official Mississippi fishing regulations.
All Lakes in Walthall County
1 lake1 graded lake
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | BLake WalthallWalthall | B | 6.2 ft | 30 µg/L | 11.2 µg/L | No recent samples | Not recorded |
Lake Match
Which lake suits how you actually use one?
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 Mississippi
See how Walthall 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.