Skip to main content
LakeQuality
B

Wildcat Lake

Vilas County, WisconsinMesotrophic

On the LakeGrade scale Wildcat Lake grades a B, with clarity at 7.0 ft and 17 µg/L of phosphorus placing it above the Wisconsin median. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Wisconsin norms.

The lake sits in the mesotrophic zone — the band where most well-managed Wisconsin lakes fall. Wildcat Lake reaches 38 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. The lake's 293 acres and partial shoreline records put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Wildcat Lake sits at rank 98 of 191 in Vilas County, in the lower half of the local distribution.

An invasive species record — Banded Mystery Snail — has been logged at Wildcat Lake; Wisconsin DNR maintains the official infested-waters list. Walleye are documented at Wildcat Lake, one of 5 fish species on record for the lake. Public access is available — the lake is on the Wisconsin DNR public-access list. 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 2026-04-22. Grade methodology: LakeGrade methodology.

Watch Wildcat Lake water quality

Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.

Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Moderate clarity, visible to about 7 ft. Phosphorus level: 17 µg/L. Trophic State Index: 47.

MetricValueGrade
Water Clarity (Secchi Depth)7 ftC
Phosphorus17 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)47Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth38 ft
Surface Area293 acres
Public AccessYes

Fish Species

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

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

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

Wildcat 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.

Banded Mystery SnailChinese Mystery Snail

Water Quality Trend: Improving

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

MetricTrendChange/YearYears
Water Clarity Improving+0.375 m/yr3
Phosphorus Stable-0.29 µg/L/yr6
See year-by-year chart →

Recreation & Access

1
Boat Landings
Yes
Public Access

Location

Loading map…

County Ranking

Ranked #98 of 191 lakes in Vilas County

Cleaner Lakes Within 30 Miles

Wildcat Lake holds Grade B. 2 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Vilas County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 2006. 1 station on file (most recent sample 2025).

DNR Assessment
Good · Deep Headwater lake
Trophic State Index 49 (mesotrophic) · 5-year average

Fish Species (DNR-rated)

Musky(Common)Panfish(Common)Smallmouth Bass(Common)Walleye(Common)Largemouth Bass(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

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

Most recent sample: 2026-04-22

Monitoring stations: 1

Where to stay near Wildcat Lake

Compare lakeside cabins, hotels, and vacation rentals near Wildcat Lake in Vilas County, Wisconsin — live availability and prices for your trip.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.