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LakeQuality
B

Baker Lake

Vilas County, WisconsinMesotrophic

On the LakeGrade scale Baker Lake grades a B, with clarity at 14.4 ft and 27 µg/L of phosphorus placing it above the Wisconsin median. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Mesotrophic conditions dominate at Baker Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. Baker Lake reaches 21 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 37 acres, Baker Lake sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Baker Lake ranks 170 of 202 in Vilas County — at the lower end of the locally monitored distribution.

An invasive species record — Chinese Mystery Snail — has been logged at Baker Lake; Wisconsin DNR maintains the official infested-waters list. Bass fishing is part of the appeal: the species list runs to 3, anchored by largemouth and/or smallmouth bass. A documented public access point at Baker 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 2025-11-14. Grade methodology: LakeGrade methodology.

Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Good clarity, visible to about 14.4 ft. Phosphorus level: 27.2 µg/L. Trophic State Index: 45.

MetricValueGrade
Water Clarity (Secchi Depth)14.4 ftB
Phosphorus27.2 µg/LB
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)45Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth21 ft
Surface Area37 acres
Public AccessYes

Fish Species

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

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

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

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

Invasive Species

Chinese Mystery Snail

Water Quality Trend: Declining

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

MetricTrendChange/YearYears
Water Clarity Declining-0.431 m/yr7
Phosphorus Stable-0.41 µg/L/yr6
See year-by-year chart →

Recreation & Access

1
Boat Landings
Yes
Public Access

Location

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County Ranking

Ranked #170 of 202 lakes in Vilas County

Cleaner Lakes Within 30 Miles

Baker Lake holds Grade B. 5 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 2007. 1 station on file (most recent sample 2025).

DNR Assessment
Fair · Deep Headwater lake
Trophic State Index 60 (eutrophic) · 5-year average

Fish Species (DNR-rated)

Panfish(Common)Largemouth Bass(Present)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: 2025-11-14

Monitoring stations: 1