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

Portage County Lake Quality

Ohio, 23 lakes, measured by Ohio EPA

The county-level average smooths over real differences — a single agricultural watershed near the southwest corner can pull the average down even if the rest of the county runs clean. The 23 monitored lakes in Portage 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.

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Where to stay near Portage County

Top-rated places to stay near Portage County

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Quick Answers for Portage County

Cleanest lakes in Portage County →Best swimming lakes in Ohio →

Planning a trip? Check special fishing regulations for Hills Pond — or check the official Ohio fishing regulations.

All Lakes in Portage County

23 lakes · 0 ranked on readings, 23 without enough sampling0 lakes ranked on readings · 23 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicMax DepthAccess
Hills PondPortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mogadore ReservoirPortageNo recent samplesNo recent samplesNo recent samplesNo recent samples25 ft✓ Public
Muddy LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Brady LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake PippenPortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Crystal LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Muzzy LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Sandy LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Wingfoot LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Berlin LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samples55.8 ftNot recorded
Michael J Kirwan ReservoirPortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Aurora PondPortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Round-up LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Sunny LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hollow LakesPortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Pittman LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake RockwellPortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
East LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
West LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Stewart PondPortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Gressard LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Colebrook LakePortageNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Walden LakePortageNo recent samplesNo 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.

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Other Counties in Ohio

Union County

1 lake

Crawford County

6 lakes

Sandusky County

4 lakes

Hancock County

6 lakes

Allen County

8 lakes

Defiance County

4 lakes

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.