Skip to main content
LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water

Morrow County Lake Quality

Ohio, 4 lakes, measured by Ohio EPA

Morrow 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. 2 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. Most monitored lakes in Morrow County are productive, shallow basins; each lake page shows its own phosphorus and chlorophyll-a readings beside the EPA condition class.

The county's lakes lean shallow, which makes the readings sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest measured lake is Amann Reservoir.

Loading map…

Where to stay near Morrow County

Top-rated places to stay near Morrow County

Prices for Oct 23–25, 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 Morrow County?

Get lake water-quality updates plus the best cabin & lodging deals near Morrow County — straight to your inbox. No spam, unsubscribe anytime.

All Lakes in Morrow County

4 lakes · 2 ranked on readings, 2 without enough sampling2 lakes ranked on readings · 2 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicAccess
1Amann ReservoirMorrowNo recent samples241 µg/LNo recent samplesNo recent samples✓ Public
2Amicks ReservoirMorrowNo recent samples60.9 µg/L38.1 µg/LNo recent samplesNot recorded
Clear Fork ReservoirMorrow3.1 ftNo recent samplesNo recent samplesNo recent samples✓ Public
Straits LakeMorrowNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot 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.

Take the quiz →

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.