Long Lake
Cumberland County, Maine6,037 acresView mapDirections
No nutrient or algae sampling on record from Maine DEP for this lake.
- 59 ft max depth
Long Lake in Cumberland County, Maine has water-quality measurements published by Maine DEP, shown here as reported. Maximum depth: 59 ft. Surface area: 6037 acres.
Long Lake is a 6,037-acre lake in Cumberland County, Maine with a maximum depth of 59 feet (23-foot average).
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
What Long Lake is good for
From access and monitoring records, not editorial picks.
- Deep water59 ft surveyed max depth
- Big water6,037 acres
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Long Lake is safe to swim in today is a call for the Maine Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Long Lake
These are the measurements Maine DEP publishes for Long 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. TSI undefined.
Ask about Long Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
59 ft
Average depth
23 ft
Surface area
6,037 acres
Shoreline
41.9 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
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Stays near Long Lake
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Fishing Long Lake
Nearby Lakes in Cumberland County
Frequently asked questions about Long Lake
Where is Long Lake?
- Long Lake is a lake in Cumberland County, Maine. Its water-quality measurements are published by Maine DEP and shown on this page as reported.
What is the water quality of Long Lake?
- Long Lake in Cumberland County, Maine has water-quality measurements published by Maine DEP, shown here as reported. Maximum depth: 59 ft. Surface area: 6037 acres.
Is Long Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Long Lake?
- Long Lake has a maximum depth of 59 feet and an average depth of 23 feet. The lake covers 6037 acres.
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Where this data comes from
Measurements for Long Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.