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LakeQuality

Spooner Lake

B
Grade B — Good
Good · #21 of 27 lakes in the county · 6.5 ft clear · Mesotrophic · 1,132 acres · from C
Mesotrophic

Spooner Lake in Washburn County, Wisconsin has a water quality grade of B (Good). Water clarity: 6.5 ft visibility. Phosphorus: 22.7 µg/L. Maximum depth: 17 ft. Surface area: 1132 acres.

Clarity
6.5 ft
Max depth
17 ft
Area
1,132 acres
Type
Mesotrophic
Trend
Stable
Public access
Yes

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Spooner Lake is a 1,132-acre mesotrophic lake in Washburn County, Wisconsin with a maximum depth of 17 feet. Water quality is graded B based on 1 sampling years through 2025. Water clarity is improving over recent sampling years. The lake supports 4 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 3 public boat landings. Compared to the 26 other monitored lakes in Washburn County, Spooner Lake ranks #21 for water quality.

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

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Swimming Safety

Grade only

Low 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

Compare the safest swimming lakes near Hayward

Get alerts for Spooner Lake

Water Quality Grade: B (Good)

Murky, only visible to about 6.5 ft. Phosphorus level: 22.7 µg/L. Trophic State Index: 50.

MetricValueGrade
Water Clarity (Secchi Depth)6.5 ftNot graded
Phosphorus22.7 µg/LGood
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)50Mesotrophic

Moderate nutrients, good water quality

Where to stay near Spooner Lake

Compare lakeside cabins, hotels, and vacation rentals near Spooner Lake in Washburn 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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Lake Details

CharacteristicValue
Maximum Depth17 ft
Surface Area1,132 acres
Public AccessYes

Lake Size & Watershed

Watershed (drainage) area
27 sq mi
Shoreline
9.3 mi
Elevation
1,076 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Recreation & Access

3
Boat Landings
Yes
Public Access
  • Spooner Lake - Golf CoursePublic
  • Spooner LakePublic
  • Dilly LakePublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Fish Species

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

Fishing Spooner 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.

Banded Mystery SnailCurly-Leaf Pondweed

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+1.5 m/yr3
Phosphorus Declining+1.08 µg/L/yr5
See year-by-year chart →

Reservoir Info (USACE NID)

Spooner Lake is a man-made reservoir impounded by the Spooner Lake (completed 1884), built primarily for recreation on the YELLOW; gravity-type dam, 11 ft tall and 200 ft long.

Surface area
1,092 ac
Normal storage
6,200 ac-ft
Max storage
9,480 ac-ft
Drainage area
20 sq mi
Hazard class
Significant
Owner
Washburn County

Source: USACE National Inventory of Dams, NID ID WI00665 · Operator website

County Ranking

Ranked #21 of 27 lakes in Washburn County

Nearby Lakes in Washburn County

Frequently asked questions about Spooner Lake

Where is Spooner Lake?

Spooner Lake is a lake in Washburn County, Wisconsin. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Spooner Lake?

Spooner Lake in Washburn County, Wisconsin has a water quality grade of B (Good). Water clarity: 6.5 ft visibility. Phosphorus: 22.7 µg/L. Maximum depth: 17 ft. Surface area: 1132 acres.

Is Spooner Lake safe to swim in?

Good for swimming, clear water with low algae levels. Spooner Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.

How deep is Spooner Lake?

Spooner Lake has a maximum depth of 17 feet. The lake covers 1132 acres.

What fish are in Spooner Lake?

Fish species found in Spooner Lake include Panfish, Largemouth Bass, Northern Pike, Walleye. Spooner Lake is located in Washburn County, Wisconsin.

Are there boat ramps on Spooner Lake?

Spooner Lake has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Spooner Lake - Golf Course, Spooner Lake, Dilly Lake. Public access is listed as yes.

Compare Spooner Lake With Nearby Lakes

Where this data comes from

26 measurements from 1 monitoring station, 2021–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Wisconsin Department of Natural ResourcesWIDNR_WQX26 samples · 2021–2025

Analytical methods

  • Phosphorus by Colorimetry
  • Turbidity in Water
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

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