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LakeQuality

Little Pickerel Lake

B
Grade B — Good
Good · #7 of 39 lakes in the county · 11 ft clear · Mesotrophic · 25 acres · from A
Mesotrophic

Little Pickerel Lake in Oconto County, Wisconsin has a water quality grade of B (Good). Water clarity: 11 ft visibility. Phosphorus: 16.9 µg/L. Maximum depth: 20 ft. Surface area: 25 acres.

Wisconsin DNR lists Panfish as present on Little Pickerel Lake. DNR survey details →

Clarity
11 ft
Typical in August
71°F
Max depth
20 ft
Area
25 acres
Type
Mesotrophic
Trend
Stable

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Little Pickerel Lake is a 25-acre mesotrophic lake in Oconto County, Wisconsin with a maximum depth of 20 feet. Water quality is graded B based on 1 sampling years through 2026. The lake supports 3 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Compared to the 38 other monitored lakes in Oconto County, Little Pickerel Lake ranks #7 for water quality.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-19. Grade methodology: LakeQuality methodology.

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Swimming Safety

Grade only

Low algae

Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

Good for swimming, clear water with low algae levels

Compare the safest swimming lakes near Rhinelander

Get alerts for Little Pickerel Lake

Water Quality Grade: B (Good)

Good clarity, visible to about 11 ft. Phosphorus level: 16.9 µg/L. Trophic State Index: 44.

MetricValueGrade
Water Clarity (Secchi Depth)11 ftNot graded
Phosphorus16.9 µg/LGood
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)44Mesotrophic

Moderate nutrients, good water quality

Where to stay near Little Pickerel Lake

Compare lakeside cabins, hotels, and vacation rentals near Little Pickerel Lake in Oconto 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 Pickerel Lake

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Planning a whole trip? See where to stay at Wisconsin’s top lakes →

Water Temperature

Little Pickerel Lake typically sits around 71°F at the surface in August. Summer average is about 72°F. Usually warmest in Jun (about 72°F) and coldest in Jan (about 36°F). These are typical values by month — not a live reading.

Jan
36°
Feb
Mar
Apr
May
62°
Jun
72°
Jul
Aug
71°
Sep
Oct
Nov
Dec

Typical surface water temperature by month, from 13 field readings (20242026) via the EPA Water Quality Portal. See the full Little Pickerel Lake water temperature breakdown →

DNR fisheries survey

Wisconsin DNR lists Panfish as present on Little Pickerel Lake.

A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Little Pickerel Lake B from EPA Water Quality Portal chemistry, and the water-quality trend over 7 years of monitoring is stable. 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 2015. 1 station on file (most recent sample 2025).

DNR Assessment
Excellent · Deep Headwater lake
Trophic State Index 45 (mesotrophic) · 5-year average

Fish Species (DNR-rated)

Panfish(Present)Largemouth Bass(Present)Northern Pike(Present)

Lake Details

CharacteristicValue
Maximum Depth20 ft
Surface Area25 acres

Fish Species

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

Fishing Little Pickerel Lake

Based on 7 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.134 m/yr7
Phosphorus Stable-0.18 µg/L/yr7
See year-by-year chart →

County Ranking

Ranked #7 of 39 lakes in Oconto County

Nearby Lakes in Oconto County

Frequently asked questions about Little Pickerel Lake

Where is Little Pickerel Lake?

Little Pickerel Lake is a lake in Oconto County, Wisconsin. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Little Pickerel Lake?

Little Pickerel Lake in Oconto County, Wisconsin has a water quality grade of B (Good). Water clarity: 11 ft visibility. Phosphorus: 16.9 µg/L. Maximum depth: 20 ft. Surface area: 25 acres.

Is Little Pickerel Lake safe to swim in?

Good for swimming, clear water with low algae levels. Little Pickerel Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.

What is the water temperature of Little Pickerel Lake?

Little Pickerel Lake typically sits around 71°F at the surface in August, from 13 EPA Water Quality Portal field readings (2024–2026). That is a typical value for the month, not a live reading.

How deep is Little Pickerel Lake?

Little Pickerel Lake has a maximum depth of 20 feet. The lake covers 25 acres.

What fish are in Little Pickerel Lake?

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

What did the DNR fisheries survey find at Little Pickerel Lake?

Wisconsin DNR lists Panfish as present on Little Pickerel Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Little Pickerel Lake B from EPA Water Quality Portal chemistry, and the water-quality trend over 7 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.

State Parks Near Little Pickerel Lake

Mesotrophic Lakes in Wisconsin

Where this data comes from

48 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_WQX48 samples · 2020–2026

Analytical methods

  • Phosphorus by Colorimetry
Monitoring station identifiers (1)

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.

Other records on this page

Lake size & watershed from HydroLAKES (HydroSHEDS)

Fish and recreation data from Wisconsin DNR Lakes