Where is Cox Hollow Lake?

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

How deep is Cox Hollow Lake?

Cox Hollow Lake has a maximum depth of 30 feet. The lake covers 82 acres.

Are there boat ramps on Cox Hollow Lake?

Cox Hollow Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Cox Hollow Lake. Public access is listed as yes.

Can I fish at Cox Hollow Lake?

Cox Hollow 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.

Cox Hollow Lake

Iowa County, Wisconsin82 acresView map Directions

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

Max depth

30 ft

Bathymetric survey

Area

82 acres

Surface area

Shoreline

3.2 mi

Measured length

Impaired · Cause unknown
30 ft max depth
Public access

See the measurements Directions Where to stay

Cox Hollow Lake in Iowa County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 30 ft. Surface area: 82 acres.

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Cox Hollow Lake is a 82-acre lake in Iowa 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 Cox Hollow 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

Recreation use not supported

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

Whether Cox Hollow 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.

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Water quality measurements for Cox Hollow Lake

These are the measurements Wisconsin DNR publishes for Cox Hollow 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 Cox Hollow Lake

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

DNR Reports & Resources

Wisconsin DNR Fisheries scientists publish multi-year survey reports for Cox Hollow Lake covering fish populations, stocking, water quality, and management. 1 report on file.

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

2022
Cox Hollow Lake comprehensive survey 2022
Comprehensive Survey · WI DNR · 2022 (PDF)

Lake Details

Max depth

30 ft

Surface area

82 acres

Shoreline

3.2 mi

Public access

Yes

Listed by Wisconsin DNR

Recreation & Access

Boat Landings

Yes

Public Access

Cox Hollow LakePublic

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

Stays via Stay22

Stays near Cox Hollow Lake

Compare lakeside cabins, hotels, and vacation rentals near Cox Hollow Lake in Iowa 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 Cox Hollow Lake

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Fishing Cox Hollow Lake

→ Cox Hollow Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

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

Causes of impairment

Cause unknown

Designated uses not supporting: Recreation.

Source: EPA ATTAINS assessment unit WI10002667 · Official waterbody report

Nearby Lakes in Iowa County

Twin Valley Lake1.7 miView →Ludden Lake1.5 ft clear · Hypereutrophic10.3 miView →Helen Lake3.4 ft clear · Eutrophic11.4 miView →Black Hawk Lake5 ft clear · Eutrophic8.8 miView →Avoca Lake2 ft clear · Eutrophic—View →Kendal Lake6.9 ft clear · Eutrophic—View →

Frequently asked questions about Cox Hollow Lake

Where is Cox Hollow Lake?: Cox Hollow Lake is a lake in Iowa County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Cox Hollow Lake?: Cox Hollow Lake in Iowa County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 30 ft. Surface area: 82 acres.
Is Cox Hollow Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Cox Hollow Lake is listed impaired under Clean Water Act §303(d) (IR 5) for cause unknown. Check local advisories before you swim.
How deep is Cox Hollow Lake?: Cox Hollow Lake has a maximum depth of 30 feet. The lake covers 82 acres.
Are there boat ramps on Cox Hollow Lake?: Cox Hollow Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Cox Hollow Lake. Public access is listed as yes.
Can I fish at Cox Hollow Lake?: Cox Hollow 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.