Marsh Lake
Steuben County, Indiana61 acresView mapDirections
IDEM publishes the water-quality measurements for Marsh Lake. Here is what has been measured.
- Impaired · Impaired biota (cause unknown)
- 38 ft max depth
- Public access
- Limited data
Marsh Lake in Steuben County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 5 µg/L. Chlorophyll-a (algae): 10.2 µg/L. Maximum depth: 38.1 ft. Surface area: 61 acres.
Marsh Lake is a 61-acre lake in Steuben County, Indiana with a maximum depth of 38 feet (20-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 2023-06-26. Methodology: how these readings are compared.
What Marsh Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Deep water38.1 ft surveyed max depth
Swimming conditions
Readings onlyLimited 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. Marsh Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), mercury. Check local advisories before you swim.
Whether Marsh 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 Marsh Lake
These are the measurements IDEM publishes for Marsh 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 5 µg/L. Chlorophyll-a 10.2 µg/L.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 5µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 10.2µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
Ask about Marsh Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
38.1 ft
Average depth
20 ft
Surface area
61 acres
Shoreline
1.7 mi
Public access
Yes
Listed by IDEM
Recreation & Access
- Pigeon River 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 Marsh Lake
Compare lakeside cabins, hotels, and vacation rentals near Marsh Lake in Steuben 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 Marsh 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 Marsh Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Marsh Lake
EPA Impairment Status
Marsh Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Fish consumption.
Source: EPA ATTAINS assessment unit INJ01P1037_00 · Official waterbody report
Nearby Lakes in Steuben County
Frequently asked questions about Marsh Lake
Where is Marsh Lake?
- Marsh Lake is a lake in Steuben County, Indiana. Its water-quality measurements are published by IDEM and shown on this page as reported.
What is the water quality of Marsh Lake?
- Marsh Lake in Steuben County, Indiana has water-quality measurements published by IDEM, shown here as reported. Phosphorus: 5 µg/L. Chlorophyll-a (algae): 10.2 µg/L. Maximum depth: 38.1 ft. Surface area: 61 acres.
Is Marsh Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Marsh Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), mercury. Check local advisories before you swim.
How deep is Marsh Lake?
- Marsh Lake has a maximum depth of 38.1 feet and an average depth of 20 feet. The lake covers 61 acres.
Are there boat ramps on Marsh Lake?
- Marsh Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Pigeon River Fish & Wildlife Area. Public access is listed as yes.
Can I fish at Marsh Lake?
- Marsh 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.
Explore Marsh 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 Marsh 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