Marion County Lake Quality
West Virginia, 1 lake, measured by WVDEP
Marion County has 1 monitored lake — 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. The 1 monitored lake in Marion County carries whatever clarity, phosphorus, and chlorophyll-a readings WVDEP 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.
Where to stay near Marion County
Top-rated places to stay near Marion County
Prices for Oct 16–18, 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 Marion County?
Get lake water-quality updates plus the best cabin & lodging deals near Marion County — straight to your inbox. No spam, unsubscribe anytime.
Quick Answers for Marion County
Planning a trip? Check special fishing regulations for Rock Lake — or check the official West Virginia fishing regulations.
All Lakes in Marion County
1 lake · 0 ranked on readings, 1 without enough sampling0 lakes ranked on readings · 1 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Rock LakeMarion | No recent samples | No recent samples | No recent samples | No recent samples | Not 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.
Other Counties in West Virginia
Browse every West Virginia 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 West Virginia Department of Environmental Protection. See data sources.