Conneaut Lake
Crawford County, Pennsylvania951 acresView mapDirections
No nutrient or algae sampling on record from PA DEP for this lake.
- Impaired · Mercury
- 76 ft max depth
- Limited data
Conneaut Lake in Crawford County, Pennsylvania has water-quality measurements published by PA DEP, shown here as reported. Maximum depth: 75.5 ft. Surface area: 951 acres.
Conneaut Lake is a 951-acre lake in Crawford County, Pennsylvania with a maximum depth of 76 feet (29-foot average).
Source: EPA Water Quality Portal sampling records, PA DEP. Methodology: how these readings are compared.
What Conneaut Lake is good for
From access and monitoring records, not editorial picks.
- Deep water75.5 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Conneaut Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.
Whether Conneaut Lake is safe to swim in today is a call for the Pennsylvania Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Conneaut Lake
These are the measurements PA DEP publishes for Conneaut Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
Ask about Conneaut Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
75.5 ft
Average depth
28.9 ft
Surface area
951 acres
Shoreline
8.4 mi
Stays via Stay22
Stays near Conneaut Lake
Compare lakeside cabins, hotels, and vacation rentals near Conneaut Lake in Crawford County, Pennsylvania — 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 Conneaut Lake
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 whole trip? See where to stay at Pennsylvania’s top lakes →
Follow Conneaut Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Conneaut Lake
EPA Impairment Status
Conneaut Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit PA-LRP-05010004001653 · Official waterbody report
Nearby Lakes in Crawford County
Frequently asked questions about Conneaut Lake
Where is Conneaut Lake?
- Conneaut Lake is a lake in Crawford County, Pennsylvania. Its water-quality measurements are published by PA DEP and shown on this page as reported.
What is the water quality of Conneaut Lake?
- Conneaut Lake in Crawford County, Pennsylvania has water-quality measurements published by PA DEP, shown here as reported. Maximum depth: 75.5 ft. Surface area: 951 acres.
Is Conneaut Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Conneaut Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.
How deep is Conneaut Lake?
- Conneaut Lake has a maximum depth of 75.5 feet and an average depth of 28.9 feet. The lake covers 951 acres.
Explore Conneaut Lake across LakeQuality
More lakes in Pennsylvania
Other Lakes in Pennsylvania
Where this data comes from
Measurements for Conneaut Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database