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LakeQuality

Kirby Lake

Barron County, Wisconsin98 acresView mapDirections

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

Clarity
7.5 ft
Typical for Wisconsin
Secchi · sampled 2025
Phosphorus
24.4 µg/L
Typical for Wisconsin
Measured by Wisconsin DNR
Max depth
19 ft
Bathymetric survey
Area
98 acres
Surface area
Type
Mesotrophic
Trophic class
Trend
Worsening
6 years of samples
  • Mesotrophic
  • 19 ft max depth
  • Public access

Kirby Lake in Barron County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 7.5 ft visibility. Phosphorus: 24.4 µg/L. Maximum depth: 19 ft. Surface area: 98 acres.

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

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Kirby Lake is a 98-acre mesotrophic lake in Barron County, Wisconsin with a maximum depth of 19 feet. Overall water quality is declining 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, Kirby Lake ranks #8 for water quality.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-09-01. Methodology: how these readings are compared.

What Kirby Lake is good for

From access and monitoring records, not editorial picks.

  • Boat launch1 documented ramp
  • Fishing3 species recorded

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 Kirby 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.

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Water quality measurements for Kirby Lake

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

Moderate clarity, visible to about 7.5 ft. Phosphorus 24.4 µg/L. TSI 49.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)7.5ftMeasured, not scored

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

Total phosphorus24.4µg/LGood
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.49Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Kirby Lake

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

DNR fisheries survey

Wisconsin DNR lists Panfish as common on Kirby Lake.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Kirby Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is declining. 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 1991. 1 station on file (most recent sample 2025).

DNR Assessment
Good · Shallow Seepage lake
Trophic State Index 50 (mesotrophic) · 5-year average

Fish Species (DNR-rated)

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

Lake Details

Max depth

19 ft

Surface area

98 acres

Public access

Yes

Listed by Wisconsin DNR

Lake Size & Watershed

Watershed (drainage) area

2 sq mi

HydroLAKES / HydroSHEDS

Shoreline

2 mi

HydroLAKES / HydroSHEDS

Elevation

1,306 ft

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

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Kirby 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 Kirby Lake

Compare lakeside cabins, hotels, and vacation rentals near Kirby 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 Kirby Lake

Prices for Oct 9–11, 4 adults. Change dates on the map below.

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Fish Species

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

Fishing Kirby Lake

Based on 6 years of monitoring (2020–2025).

  • Water clarity

    Worsening

    2 years

  • Phosphorus

    Worsening

    +2.4 µg/L/yr6 years

See year-by-year chart →

Nearby Lakes in Barron County

Frequently asked questions about Kirby Lake

Where is Kirby Lake?

Kirby 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 Kirby Lake?

Kirby Lake in Barron County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 7.5 ft visibility. Phosphorus: 24.4 µg/L. Maximum depth: 19 ft. Surface area: 98 acres.

Measurements on this page ↑

Is Kirby Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

How deep is Kirby Lake?

Kirby Lake has a maximum depth of 19 feet. The lake covers 98 acres.

What fish are in Kirby Lake?

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

Fish on this page ↑

What did the DNR fisheries survey find at Kirby Lake?

Wisconsin DNR lists Panfish as common on Kirby Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Kirby Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.

DNR on this page ↑

Are there boat ramps on Kirby Lake?

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

Access on this page ↑

Can I fish at Kirby Lake?

Kirby 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.

Access on this page ↑

Mesotrophic Lakes in Wisconsin

Where this data comes from

23 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Wisconsin Department of Natural ResourcesWIDNR_WQX23 samples · 2020–2025

Analytical methods

  • Phosphorus by Colorimetry
Monitoring station identifiers (1)

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