Knapp Lake is a lake in Noble County, Indiana. Its water-quality measurements are published by IDEM and shown on this page as reported.

Are there boat ramps on Knapp Lake?

Knapp Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Tri-County Fish & Wildlife Area. Public access is listed as yes.

Can I fish at Knapp Lake?

Knapp Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Indiana's fish and wildlife agency, so check its current regulations before you go.

Knapp Lake

Noble County, Indiana89 acresView map Directions

No nutrient or algae sampling on record from IDEM for this lake.

Area

89 acres

Surface area

Shoreline

3.4 mi

Measured length

Impaired · Impaired biota (cause unknown)
Public access
Limited data

See the measurements Directions Where to stay

Knapp Lake in Noble County, Indiana has water-quality measurements published by IDEM, shown here as reported. Surface area: 89 acres.

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Knapp Lake is a 89-acre lake in Noble County, Indiana. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, IDEM, last sampled 2024-09-11. Methodology: how these readings are compared.

What Knapp Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Knapp Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown). Check local advisories before you swim.

Whether Knapp 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.

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Water quality measurements for Knapp Lake

These are the measurements IDEM publishes for Knapp 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 Knapp Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

89 acres

Shoreline

3.4 mi

Public access

Yes

Listed by IDEM

No bathymetric survey has been published for Knapp Lake, so its depth is not documented here.

Recreation & Access

Boat Landings

Yes

Public Access

Tri-County Fish & Wildlife AreaPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Stays via Stay22

Stays near Knapp Lake

Compare lakeside cabins, hotels, and vacation rentals near Knapp Lake in Noble 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 Knapp Lake

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Fishing Knapp Lake

→ Knapp Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Knapp Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Impaired biota (cause unknown)

Designated uses not supporting: Aquatic life.

Source: EPA ATTAINS assessment unit INJ01P1193_00 · Official waterbody report

Nearby Lakes in Noble County

Gordy Lake1 miView →Gilbert Lake1.3 miView →Baugher Lake1.9 miView →Smalley Lake2.7 miView →Deer Lake3.5 miView →Sparta LakeMesotrophic—View →

Frequently asked questions about Knapp Lake

Where is Knapp Lake?: Knapp Lake is a lake in Noble County, Indiana. Its water-quality measurements are published by IDEM and shown on this page as reported.
What is the water quality of Knapp Lake?: Knapp Lake in Noble County, Indiana has water-quality measurements published by IDEM, shown here as reported. Surface area: 89 acres.
Is Knapp Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Knapp Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown). Check local advisories before you swim.
Are there boat ramps on Knapp Lake?: Knapp Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Tri-County Fish & Wildlife Area. Public access is listed as yes.
Can I fish at Knapp Lake?: Knapp Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Indiana's fish and wildlife agency, so check its current regulations before you go.