North Bass Lake
Iron County, Wisconsin190 acresView mapDirections
No nutrient or algae sampling on record from Wisconsin DNR for this lake.
- Impaired · Mercury
- 11 ft max depth
- Public access
North Bass Lake in Iron County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 11 ft. Surface area: 190 acres.
North Bass Lake is a 190-acre lake in Iron County, Wisconsin with a maximum depth of 11 feet (7-foot average). 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 North Bass Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. North Bass Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Whether North Bass 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.
Water quality measurements for North Bass Lake
These are the measurements Wisconsin DNR publishes for North Bass 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 North Bass 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 North Bass 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).
- 2024North Bass Lake late spring shocking survey, 2024Spring Shocking Survey · WI DNR · 2024 (PDF)
Lake Details
Max depth
11 ft
Average depth
7 ft
Surface area
190 acres
Shoreline
2.5 mi
Public access
Yes
Listed by Wisconsin DNR
Recreation & Access
- North Bass 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 North Bass Lake
Compare lakeside cabins, hotels, and vacation rentals near North Bass Lake in Iron 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 North Bass 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 North Bass Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing North Bass Lake
EPA Impairment Status
North Bass Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Fish consumption.
Source: EPA ATTAINS assessment unit WI10003714 · Official waterbody report
Nearby Lakes in Iron County
Frequently asked questions about North Bass Lake
Where is North Bass Lake?
- North Bass Lake is a lake in Iron County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of North Bass Lake?
- North Bass Lake in Iron County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 11 ft. Surface area: 190 acres.
Is North Bass Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. North Bass Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
How deep is North Bass Lake?
- North Bass Lake has a maximum depth of 11 feet and an average depth of 7 feet. The lake covers 190 acres.
Are there boat ramps on North Bass Lake?
- North Bass Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include North Bass Lake. Public access is listed as yes.
Can I fish at North Bass Lake?
- North Bass 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.
Explore North Bass Lake across LakeQuality
Fish species and the cleanest lakes across Wisconsin
Fish species and best lakes in Iron County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Northwoods Wisconsin area
Where to stay at Wisconsin's top lakes, each with its readings
Lakes in the Lake Superior Basin (MN+WI), ranked by water quality
Wisconsin's cleanest lakes, ranked on agency measurements
More lakes in Wisconsin
Other Lakes in Wisconsin
Where this data comes from
Measurements for North Bass Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory