Blackman Lake
LaGrange County, Indiana70 acresView mapDirections
No nutrient or algae sampling on record from IDEM for this lake.
- 55 ft max depth
Blackman Lake in LaGrange County, Indiana has water-quality measurements published by IDEM, shown here as reported. Maximum depth: 55.1 ft. Surface area: 70 acres.
Blackman Lake is a 70-acre lake in LaGrange County, Indiana with a maximum depth of 55 feet (18-foot average).
Source: EPA Water Quality Portal sampling records, IDEM. Methodology: how these readings are compared.
What Blackman Lake is good for
From access and monitoring records, not editorial picks.
- Deep water55.1 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 Blackman Lake is safe to swim in today is a call for the Indiana Department of Environmental Management and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Blackman Lake
These are the measurements IDEM publishes for Blackman 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 Blackman Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
55.1 ft
Average depth
18 ft
Surface area
70 acres
Shoreline
1.8 mi
Stays via Stay22
Stays near Blackman Lake
Compare lakeside cabins, hotels, and vacation rentals near Blackman Lake in LaGrange County, Indiana — 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 Blackman 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 Indiana’s top lakes →
Follow Blackman Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Blackman Lake
Nearby Lakes in LaGrange County
Frequently asked questions about Blackman Lake
Where is Blackman Lake?
- Blackman Lake is a lake in LaGrange County, Indiana. Its water-quality measurements are published by IDEM and shown on this page as reported.
What is the water quality of Blackman Lake?
- Blackman Lake in LaGrange County, Indiana has water-quality measurements published by IDEM, shown here as reported. Maximum depth: 55.1 ft. Surface area: 70 acres.
Is Blackman Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Blackman Lake?
- Blackman Lake has a maximum depth of 55.1 feet and an average depth of 18 feet. The lake covers 70 acres.
Explore Blackman Lake across LakeQuality
Species activity outlook by water temperature and season
Top lakes and where to stay in the Northern Indiana Lake Country area
Where to stay at Indiana's top lakes, each with its readings
Indiana's cleanest lakes, ranked on agency measurements
More lakes in Indiana
Other Lakes in Indiana
Where this data comes from
Measurements for Blackman Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.