Skip to main content
LakeQuality

Lawrence Lake

Marshall County, Indiana71 acresView mapDirections

IDEM publishes the water-quality measurements for Lawrence Lake. Here is what has been measured.

Phosphorus
27.5 µg/L
Less phosphorus than most
Measured by IDEM
Chlorophyll-a
3.8 µg/L
Typical for Indiana
Measured by IDEM
Max depth
63 ft
Bathymetric survey
Area
71 acres
Surface area
Type
Mesotrophic
Trophic class
Shoreline
1.9 mi
Measured length
  • Mesotrophic
  • Impaired · Impaired biota (cause unknown)
  • 63 ft max depth
  • Public access
  • Limited data

Lawrence Lake in Marshall County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 27.5 µg/L. Chlorophyll-a (algae): 3.8 µg/L. Maximum depth: 63 ft. Surface area: 71 acres.

Loading map…

Lawrence Lake is a 71-acre mesotrophic lake in Marshall County, Indiana with a maximum depth of 63 feet (23-foot average). Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, IDEM, last sampled 2024-07-18. Methodology: how these readings are compared.

What Lawrence Lake is good for

From access and monitoring records, not editorial picks.

  • Boat launch1 documented ramp
  • Deep water63 ft surveyed max depth

Swimming conditions

Readings only

Limited data

Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

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

Whether Lawrence 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.

Compare swimming lakes near Fort Wayne →

Get alerts for Lawrence Lake →

Water quality measurements for Lawrence Lake

These are the measurements IDEM publishes for Lawrence 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. Phosphorus 27.5 µg/L. Chlorophyll-a 3.8 µg/L.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)No reading

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus27.5µg/LFair
GoodFairPoor
Chlorophyll-a (algae)3.8µg/LGood
GoodFairPoor

Moderate nutrients, good water quality

Ask about Lawrence Lake

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

Lake Details

Max depth

63 ft

Average depth

23 ft

Surface area

71 acres

Shoreline

1.9 mi

Public access

Yes

Listed by IDEM

Recreation & Access

1
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 Lawrence Lake

Compare lakeside cabins, hotels, and vacation rentals near Lawrence Lake in Marshall 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 Lawrence 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 Lawrence Lake’s readings

Email me when new measurements post for this lake. Updates stay free.


Or email

Fishing Lawrence Lake

EPA Impairment Status

Lawrence 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 INK01P1037_00 · Official waterbody report

Nearby Lakes in Marshall County

Frequently asked questions about Lawrence Lake

Where is Lawrence Lake?

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

What is the water quality of Lawrence Lake?

Lawrence Lake in Marshall County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 27.5 µg/L. Chlorophyll-a (algae): 3.8 µg/L. Maximum depth: 63 ft. Surface area: 71 acres.

Measurements on this page ↑

Is Lawrence Lake safe to swim in?

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

Swimming on this page ↑

How deep is Lawrence Lake?

Lawrence Lake has a maximum depth of 63 feet and an average depth of 23 feet. The lake covers 71 acres.

Are there boat ramps on Lawrence Lake?

Lawrence 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.

Access on this page ↑

Can I fish at Lawrence Lake?

Lawrence 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.

Access on this page ↑

Where this data comes from

Measurements for Lawrence Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.

EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database

Named boat-access points from the USGS National Boat Ramps inventory