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Little Elkhart Lake

Sheboygan County, WisconsinMesotrophic

Little Elkhart Lake earns an A — every scored parameter (clarity and phosphorus) rates among the best monitored waters in Sheboygan County. With clarity and phosphorus scored, the sub-grades cluster within a letter of each other, pointing to stable conditions rather than one specific stressor.

A TSI near 45 places Little Elkhart Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. The lake bottoms out at 25 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 52 acres, Little Elkhart Lake sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Little Elkhart Lake ranks 2 of 6 in Sheboygan County — solidly in the upper half of the local distribution.

Little Elkhart Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. The fishery is bass-led, with 3 documented species across the lake's records. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-08-25. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Good clarity, visible to about 10 ft. Phosphorus level: 17.3 µg/L. Trophic State Index: 45.

MetricValueGrade
Water Clarity (Secchi Depth)10 ftB
Phosphorus17.3 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)45Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth25 ft
Surface Area52 acres

Fish Species

Click a species to see all Wisconsin and Minnesota lakes where it is found.

→ Best fishing times for Little Elkhart Lake (14-day solunar calendar)

→ Is it safe to eat fish from Little Elkhart Lake? (mercury & PFAS guide)

Little Elkhart Lake fishing regulations (limits, seasons, special rules)

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 SnailCurly-Leaf PondweedEurasian Water-Milfoil

Water Quality Trend: Declining

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.65 m/yr4
Phosphorus Declining+0.52 µg/L/yr6
See year-by-year chart →

Location

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County Ranking

Ranked #2 of 6 lakes in Sheboygan County

Nearby Lakes in Sheboygan County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1998. 11 stations on file (most recent sample 2025).

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

Fish Species (DNR-rated)

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

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2025-08-25

Monitoring stations: 1