Saint John Lake
Warren County, New York34 acresView mapDirections
No nutrient or algae sampling on record from NY DEC for this lake.
- 36 ft max depth
Saint John Lake in Warren County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 36.1 ft. Surface area: 34 acres.
Saint John Lake is a 34-acre lake in Warren County, New York with a maximum depth of 36 feet (14-foot average).
Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.
What Saint John Lake is good for
From access and monitoring records, not editorial picks.
- Deep water36.1 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Saint John Lake is safe to swim in today is a call for the New York Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Saint John Lake
These are the measurements NY DEC publishes for Saint John 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 Saint John Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
36.1 ft
Average depth
13.5 ft
Surface area
34 acres
Shoreline
1.3 mi
Stays via Stay22
Stays near Saint John Lake
Compare lakeside cabins, hotels, and vacation rentals near Saint John Lake in Warren County, New York — 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 Saint John 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 New York’s top lakes →
Follow Saint John Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Saint John Lake
Nearby Lakes in Warren County
Frequently asked questions about Saint John Lake
Where is Saint John Lake?
- Saint John Lake is a lake in Warren County, New York. Its water-quality measurements are published by NY DEC and shown on this page as reported.
What is the water quality of Saint John Lake?
- Saint John Lake in Warren County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 36.1 ft. Surface area: 34 acres.
Is Saint John Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Saint John Lake?
- Saint John Lake has a maximum depth of 36.1 feet and an average depth of 13.5 feet. The lake covers 34 acres.
Explore Saint John Lake across LakeQuality
Species activity outlook by water temperature and season
Top lakes and where to stay in the Adirondacks area
Where to stay at New York's top lakes, each with its readings
New York's cleanest lakes, ranked on agency measurements
More lakes in New York
Other Lakes in New York
Where this data comes from
Measurements for Saint John Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.