Katahdin Lake
Penobscot County, Maine650 acresView mapDirections
No nutrient or algae sampling on record from Maine DEP for this lake.
- 30 ft max depth
Katahdin Lake in Penobscot County, Maine has water-quality measurements published by Maine DEP, shown here as reported. Maximum depth: 29.5 ft. Surface area: 650 acres.
Katahdin Lake is a 650-acre lake in Penobscot County, Maine with a maximum depth of 30 feet (11-foot average).
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Katahdin 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 Katahdin Lake
These are the measurements Maine DEP publishes for Katahdin 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 Katahdin Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
29.5 ft
Average depth
11 ft
Surface area
650 acres
Shoreline
4.6 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
Stays via Stay22
Stays near Katahdin Lake
Compare lakeside cabins, hotels, and vacation rentals near Katahdin Lake in Penobscot County, Maine — 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 Katahdin 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.
Follow Katahdin Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Katahdin Lake
Nearby Lakes in Penobscot County
Frequently asked questions about Katahdin Lake
Where is Katahdin Lake?
- Katahdin Lake is a lake in Penobscot County, Maine. Its water-quality measurements are published by Maine DEP and shown on this page as reported.
What is the water quality of Katahdin Lake?
- Katahdin Lake in Penobscot County, Maine has water-quality measurements published by Maine DEP, shown here as reported. Maximum depth: 29.5 ft. Surface area: 650 acres.
Is Katahdin Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Katahdin Lake?
- Katahdin Lake has a maximum depth of 29.5 feet and an average depth of 11 feet. The lake covers 650 acres.
Explore Katahdin Lake across LakeQuality
More lakes in Maine
Other Lakes in Maine
Where this data comes from
Measurements for Katahdin Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.