
Ashtabula County Lake Quality
Ohio, 4 lakes, measured by Ohio EPA
Ashtabula County has 4 monitored 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. The 4 monitored lakes in Ashtabula County carry whatever clarity, phosphorus, and chlorophyll-a readings Ohio EPA 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 Ashtabula County
Top-rated places to stay near Ashtabula 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 Ashtabula County?
Get lake water-quality updates plus the best cabin & lodging deals near Ashtabula County — straight to your inbox. No spam, unsubscribe anytime.
Quick Answers for Ashtabula County
Planning a trip? Check special fishing regulations for Lake George — or check the official Ohio fishing regulations.
All Lakes in Ashtabula County
4 lakes · 0 ranked on readings, 4 without enough sampling0 lakes ranked on readings · 4 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Lake GeorgeAshtabula | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Armington LakeAshtabula | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Lake Roaming RockAshtabula | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Lake CardinalAshtabula | 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 Ohio
Browse every Ohio 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 Ohio Environmental Protection Agency. See data sources.