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LakeQuality
A

Cross Lake

Kenosha County, WisconsinOligotrophic

Cross Lake sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in Wisconsin. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

A TSI value of 36 puts Cross Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. A maximum depth of 35 ft puts Cross Lake in the middle of Wisconsin's depth distribution. At 89 acres, Cross Lake sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Cross Lake sits at rank 9 of 13 in Kenosha County, in the lower half of the local distribution.

Eurasian watermilfoil has been documented at Cross Lake, requiring shoreline management to keep dense mats from crowding native vegetation. The fishery is bass-led, with 3 documented species across the lake's records. A documented public access point at Cross Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. 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 2025-09-02. Grade methodology: LakeGrade methodology.

Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Crystal clear, you can see 31.2 ft down. Phosphorus level: 16.1 µg/L. Trophic State Index: 36.

MetricValueGrade
Water Clarity (Secchi Depth)31.2 ftA
Phosphorus16.1 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)36Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth35 ft
Surface Area89 acres
Public AccessYes

Fish Species

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

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

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

Cross Lake fishing regulations (limits, seasons, special rules)

Invasive Species

Curly-Leaf PondweedEurasian Water-Milfoil

Water Quality Trend: Improving

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

MetricTrendChange/YearYears
Water Clarity Improving+1.116 m/yr6
Phosphorus Improving-8.88 µg/L/yr4

Recreation & Access

1
Boat Landings
Yes
Public Access

Location

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County Ranking

Ranked #9 of 13 lakes in Kenosha County

Nearby Lakes in Kenosha County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1989. 1 station on file (most recent sample 2025).

Fish Species (DNR-rated)

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

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2025-09-02

Monitoring stations: 1