Where is Little Dummy Lake?

Little Dummy Lake is a lake in Barron County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.

How deep is Little Dummy Lake?

Little Dummy Lake has a maximum depth of 44 feet. The lake covers 43 acres.

What fish are in Little Dummy Lake?

Fish species found in Little Dummy Lake include Panfish, Largemouth Bass, Northern Pike. Little Dummy Lake is located in Barron County, Wisconsin.

Are there boat ramps on Little Dummy Lake?

Little Dummy Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Little Dummy Lake. Public access is listed as yes.

Can I fish at Little Dummy Lake?

Little Dummy 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 Wisconsin's fish and wildlife agency, so check its current regulations before you go.

Little Dummy Lake

Barron County, Wisconsin43 acresView map Directions

Wisconsin DNR publishes the water-quality measurements for Little Dummy Lake. Here is what has been measured.

Clarity

11 ft

Typical for Wisconsin

Secchi · sampled 2026

Phosphorus

14.8 µg/L

Typical for Wisconsin

Measured by Wisconsin DNR

Max depth

44 ft

Bathymetric survey

Area

43 acres

Surface area

Type

Mesotrophic

Trophic class

Trend

Improving

7 years of samples

Mesotrophic
44 ft max depth
Public access

See the measurements Directions Where to stay

Little Dummy Lake in Barron County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 11 ft visibility. Phosphorus: 14.8 µg/L. Maximum depth: 44 ft. Surface area: 43 acres.

Wisconsin DNR lists Panfish as common on Little Dummy Lake. DNR survey details →

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Little Dummy Lake is a 43-acre mesotrophic lake in Barron County, Wisconsin with a maximum depth of 44 feet. Overall water quality is improving over recent sampling years. The lake supports 3 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 1 public boat landing. Compared to the 27 other monitored lakes in Barron County, Little Dummy Lake ranks #16 for water quality.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-29. Methodology: how these readings are compared.

What Little Dummy Lake is good for

From access and monitoring records, not editorial picks.

Clear water11 ft of visibility
Boat launch1 documented ramp
Fishing3 species recorded
Deep water44 ft surveyed max depth

Swimming conditions

Readings only

Low algae

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. Check local advisories before you swim.

Whether Little Dummy Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Compare swimming lakes near Hayward →

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Water quality measurements for Little Dummy Lake

These are the measurements Wisconsin DNR publishes for Little Dummy Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Good clarity, visible to about 11 ft. Phosphorus 14.8 µg/L. TSI 43.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	11ft	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	14.8µg/L	Good GoodFairPoor
Chlorophyll-a (algae)		No reading The green pigment in algae — a direct measure of how much algae is in the water.
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.	43	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Little Dummy Lake

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

DNR fisheries survey

Wisconsin DNR lists Panfish as common on Little Dummy Lake.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Little Dummy Lake’s water-quality measurements separately, and the water-quality trend over 7 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1988. 2 stations on file (most recent sample 2025).

DNR Assessment

Good · Deep Seepage lake

Trophic State Index 46 (mesotrophic) · 5-year average

Fish Species (DNR-rated)

Panfish(Common)Largemouth Bass(Common)Northern Pike(Common)

Contour map (PDF) →Full WI DNR LakePage →Water quality stations →

Lake Details

Max depth

44 ft

Surface area

43 acres

Public access

Yes

Listed by Wisconsin DNR

Lake Size & Watershed

Watershed (drainage) area

1 sq mi

HydroLAKES / HydroSHEDS

Shoreline

1.1 mi

HydroLAKES / HydroSHEDS

Elevation

1,230 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Recreation & Access

Boat Landings

Yes

Public Access

Little Dummy LakePublic

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

Stays via Stay22

Stays near Little Dummy Lake

Compare lakeside cabins, hotels, and vacation rentals near Little Dummy Lake in Barron County, Wisconsin — 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 Little Dummy Lake

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Follow Little Dummy Lake’s readings

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Fish Species

Panfish Largemouth Bass Northern Pike

Click a species to see every lake where it is documented.

Fishing Little Dummy Lake

Invasive & Introduced Species

Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.

Chinese Mystery Snail

Water Quality Trend: Improving

Based on 7 years of monitoring (2020–2026).

Water clarity
Improving
6 years
Phosphorus
Improving
-0.69 µg/L/yr7 years

See year-by-year chart →

Nearby Lakes in Barron County

Big Dummy Lake12 ft clear · Mesotrophic—View →Granite Lake at6 ft clear · Eutrophic—View →Greeley Lake—View →Duck Lake—View →Buck Lake—View →Sylvan Lake—View →

Frequently asked questions about Little Dummy Lake

Where is Little Dummy Lake?: Little Dummy Lake is a lake in Barron County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Little Dummy Lake?: Little Dummy Lake in Barron County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 11 ft visibility. Phosphorus: 14.8 µg/L. Maximum depth: 44 ft. Surface area: 43 acres.
Is Little Dummy Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Little Dummy Lake?: Little Dummy Lake has a maximum depth of 44 feet. The lake covers 43 acres.
What fish are in Little Dummy Lake?: Fish species found in Little Dummy Lake include Panfish, Largemouth Bass, Northern Pike. Little Dummy Lake is located in Barron County, Wisconsin.
What did the DNR fisheries survey find at Little Dummy Lake?: Wisconsin DNR lists Panfish as common on Little Dummy Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Little Dummy Lake’s water-quality measurements separately, and the water-quality trend over 7 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Little Dummy Lake?: Little Dummy Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Little Dummy Lake. Public access is listed as yes.
Can I fish at Little Dummy Lake?: Little Dummy 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 Wisconsin's fish and wildlife agency, so check its current regulations before you go.

Explore Little Dummy Lake across LakeQuality

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State Parks Near Little Dummy Lake

Straight Lake State Park

State Park · 20.7 mi

Other Lakes in Wisconsin

Shell Lake

Washburn County · 16 ft

Dace Lake

Polk County · Measured

Polk County · 4.3 ft

Polk County · 8.2 ft

Polk County · 8.5 ft

Polk County · 11.5 ft

Mesotrophic Lakes in Wisconsin

Shell Lake Ripley Lake Dace Lake Ember Lake

Where this data comes from

35 measurements from 1 monitoring station, 2020–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

Wisconsin Department of Natural ResourcesWIDNR_WQX35 samples · 2020–2026

Analytical methods

Phosphorus by Colorimetry

Monitoring station identifiers (1)

WIDNR_WQX-033184

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

Lake size & watershed from HydroLAKES (HydroSHEDS)

Fish and recreation data from Wisconsin DNR Lakes

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