Middle Mckenzie Lake
Middle Mckenzie Lake in Burnett County, Wisconsin has a water quality grade of B (Good). Water clarity: 20 ft visibility. Phosphorus: 12.4 µg/L. Maximum depth: 45 ft. Surface area: 527 acres.
- Clarity
- 20 ft
- Typical in August
- 80°F
- Max depth
- 45 ft
- Area
- 527 acres
- Type
- Oligotrophic
- Trend
- ↑ Improving
- Public access
- Yes
Next lake in Burnett County
Middle Mckenzie Lake is a 527-acre cold, clear oligotrophic lake in Burnett County, Wisconsin with a maximum depth of 45 feet. Water quality is graded B based on 1 sampling years through 2026. Overall water quality is improving over recent sampling years. The lake supports 5 documented fish species including Musky, Panfish, and Largemouth Bass. Public access is available with 1 public boat landing. Compared to the 29 other monitored lakes in Burnett County, Middle Mckenzie Lake ranks #23 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-05-19. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLow 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
Water Quality Grade: B (Good)
Crystal clear, you can see 20 ft down. Phosphorus level: 12.4 µg/L. Trophic State Index: 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 20 ft | Not graded |
| Phosphorus | 12.4 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Middle Mckenzie Lake
Compare lakeside cabins, hotels, and vacation rentals near Middle Mckenzie Lake in Burnett 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.
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Water Temperature
Middle Mckenzie Lake typically sits around 80°F at the surface in August. Summer average is about 76°F. Usually warmest in Aug (about 80°F) and coldest in May (about 53°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 8 field readings (2024–2024) via the EPA Water Quality Portal. See the full Middle Mckenzie Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 45 ft |
| Surface Area | 527 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Middle McKenzie LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Middle Mckenzie Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 2 stations on file (most recent sample 2024).
Fish Species (DNR-rated)
Water Quality Trend: ↑ Improving
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +1 m/yr | 4 |
| Phosphorus | ↑ Improving | -0.47 µg/L/yr | 4 |
EPA Impairment Status
Middle Mckenzie Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5R).
Causes of impairment
Source: EPA ATTAINS assessment unit WI10005561 · Official waterbody report
County Ranking
Ranked #23 of 30 lakes in Burnett County
Nearby Lakes in Burnett County
Frequently asked questions about Middle Mckenzie Lake
What is the water quality grade for Middle Mckenzie Lake?
- Middle Mckenzie Lake in Burnett County, Wisconsin has a water quality grade of B (Good). Water clarity: 20 ft visibility. Phosphorus: 12.4 µg/L. Maximum depth: 45 ft. Surface area: 527 acres.
Is Middle Mckenzie Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Middle Mckenzie Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
What is the water temperature of Middle Mckenzie Lake?
- Middle Mckenzie Lake typically sits around 80°F at the surface in August, from 8 EPA Water Quality Portal field readings (2024–2024). That is a typical value for the month, not a live reading.
How deep is Middle Mckenzie Lake?
- Middle Mckenzie Lake has a maximum depth of 45 feet. The lake covers 527 acres.
What fish are in Middle Mckenzie Lake?
- Fish species found in Middle Mckenzie Lake include Musky, Panfish, Largemouth Bass, Northern Pike, Walleye. Middle Mckenzie Lake is located in Burnett County, Wisconsin.
Are there boat ramps on Middle Mckenzie Lake?
- Middle Mckenzie Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Middle McKenzie Lake. Public access is listed as yes.
Explore Middle Mckenzie Lake across LakeGrade
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Where this data comes from
32 measurements from 1 monitoring station, 2021–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX32 samples · 2021–2026
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory