Where is Lake Seneca?

Lake Seneca is a lake in Williams County, Ohio. Its water-quality measurements are published by Ohio EPA and shown on this page as reported.

Lake Seneca

Williams County, Ohio241 acresView map Directions

No nutrient or algae sampling on record from Ohio EPA for this lake.

Area

241 acres

Surface area

Shoreline

7.1 mi

Measured length

See the measurements Directions Where to stay

Lake Seneca in Williams County, Ohio has water-quality measurements published by Ohio EPA, shown here as reported. Surface area: 241 acres.

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Lake Seneca is a 241-acre lake in Williams County, Ohio.

Source: EPA Water Quality Portal sampling records, Ohio EPA. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Lake Seneca is safe to swim in today is a call for the Ohio Environmental Protection Agency and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Lake Seneca

These are the measurements Ohio EPA publishes for Lake Seneca, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Lake Seneca

Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

241 acres

Shoreline

7.1 mi

No bathymetric survey has been published for Lake Seneca, so its depth is not documented here.

Stays via Stay22

Stays near Lake Seneca

Compare lakeside cabins, hotels, and vacation rentals near Lake Seneca in Williams County, Ohio — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Lake Seneca

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Follow Lake Seneca’s readings

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Fishing Lake Seneca

→ Lake Seneca fishing regulations (limits, seasons, special rules)

Nearby Lakes in Williams County

Lous Pond2.3 miView →Nettle Lake3.8 miView →Browns Recreation Lake7.3 miView →Harrison Lake—View →Oxbow Lake—View →Archbold Reservoir Number Two—View →

Frequently asked questions about Lake Seneca

Where is Lake Seneca?: Lake Seneca is a lake in Williams County, Ohio. Its water-quality measurements are published by Ohio EPA and shown on this page as reported.
What is the water quality of Lake Seneca?: Lake Seneca in Williams County, Ohio has water-quality measurements published by Ohio EPA, shown here as reported. Surface area: 241 acres.
Is Lake Seneca safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.