Where is Diamond Lake?

Diamond Lake is a lake in Taylor County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.

How deep is Diamond Lake?

Diamond Lake has a maximum depth of 30 feet. The lake covers 49 acres.

Are there boat ramps on Diamond Lake?

Diamond Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Diamond Lake State Natural Area. Public access is listed as yes.

Can I fish at Diamond Lake?

Diamond Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Wisconsin's fish and wildlife agency, so check its current regulations before you go.

Diamond Lake

Taylor County, Wisconsin49 acresView map Directions

No nutrient or algae sampling on record from Wisconsin DNR for this lake.

Max depth

30 ft

Bathymetric survey

Area

49 acres

Surface area

Shoreline

1.4 mi

Measured length

Impaired · Mercury
30 ft max depth
Public access

See the measurements Directions Where to stay

Diamond Lake in Taylor County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 30 ft. Surface area: 49 acres.

Loading map…

Diamond Lake is a 49-acre lake in Taylor County, Wisconsin with a maximum depth of 30 feet. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water. Methodology: how these readings are compared.

What Diamond Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp
Deep water30 ft surveyed max depth

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Diamond Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.

Whether Diamond Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Compare swimming lakes near Eau Claire →

Get alerts for Diamond Lake →

Water quality measurements for Diamond Lake

These are the measurements Wisconsin DNR publishes for Diamond Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Diamond Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

30 ft

Surface area

49 acres

Shoreline

1.4 mi

Public access

Yes

Listed by Wisconsin DNR

Recreation & Access

Boat Landings

Yes

Public Access

Diamond Lake State Natural AreaPublic

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

Stays via Stay22

Stays near Diamond Lake

Compare lakeside cabins, hotels, and vacation rentals near Diamond Lake in Taylor 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.

Top-rated places to stay near Diamond Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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

Planning a whole trip? See where to stay at Wisconsin’s top lakes →

Follow Diamond Lake’s readings

Email me when new measurements post for this lake. Updates stay free.

Or email

Fishing Diamond Lake

→ Diamond Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Diamond Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Mercury

Designated uses not supporting: Fish consumption.

Source: EPA ATTAINS assessment unit WI10003210 · Official waterbody report

Nearby Lakes in Taylor County

Chequamegon Waters Flowage Lake2.5 ft clear · Eutrophic6.9 miView →Kathryn Lake7.2 miView →Richter Lake10 ft clear · Mesotrophic7.3 miView →Anderson Lake7.9 miView →Jerry Lake8.9 miView →Mud Lake8.8 miView →

Frequently asked questions about Diamond Lake

Where is Diamond Lake?: Diamond Lake is a lake in Taylor County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Diamond Lake?: Diamond Lake in Taylor County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 30 ft. Surface area: 49 acres.
Is Diamond Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Diamond Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
How deep is Diamond Lake?: Diamond Lake has a maximum depth of 30 feet. The lake covers 49 acres.
Are there boat ramps on Diamond Lake?: Diamond Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Diamond Lake State Natural Area. Public access is listed as yes.
Can I fish at Diamond Lake?: Diamond Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Wisconsin's fish and wildlife agency, so check its current regulations before you go.