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LakeQuality

North Lake

Florence County, Wisconsin79 acresView mapDirections

Wisconsin DNR publishes the water-quality measurements for North Lake. Here is what has been measured.

Clarity
15 ft
Clearer than most
Secchi · sampled 2026
Level
907.01 ft
USGS · Jul 6 · elevation
Max depth
43 ft
Bathymetric survey
Area
79 acres
Surface area
Trend
Improving
7 years of samples
  • 2 aquatic invasives
  • 43 ft max depth
  • Public access
  • Limited data

North Lake in Florence County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 15 ft visibility. Maximum depth: 43 ft. Surface area: 79 acres.

Wisconsin DNR rates Panfish as abundant on North Lake. DNR survey details →

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North Lake is a 79-acre lake in Florence County, Wisconsin with a maximum depth of 43 feet. Overall water quality is improving over recent sampling years. The lake supports 5 documented fish species including Panfish, Largemouth Bass, and Smallmouth Bass. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-19. Methodology: how these readings are compared.

What North Lake is good for

From access and monitoring records, not editorial picks.

  • Clear water15 ft of visibility
  • Boat launch1 documented ramp
  • Fishing5 species recorded
  • Deep water43 ft surveyed max depth
PDF

North Lake Water Quality Summary (2026)

A printable one-page summary for North Lake: clarity, phosphorus, algae, multi-year trend, depth, and fish — with sources.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether North 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 North Lake

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

Crystal clear, you can see 15 ft down. TSI 38.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)15ftMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorusNo reading

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)No reading

The green pigment in algae — a direct measure of how much algae is in the water.

Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.38Oligotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Low nutrients, clear water. No reading is a swimming clearance.

Ask about North Lake

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

Current Conditions

907.01 ft
Water Elevation

USGS snapshot Jul 6, 2026, 5:00 AM from gauge 05545000 (North Lake Near Elkhorn, WI). Station page ↗ — a live reading replaces this snapshot when the gauge responds. Missing live data is not an all-clear.

DNR fisheries survey

Wisconsin DNR rates Panfish as abundant on North Lake.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows North Lake’s water-quality measurements separately, and the water-quality trend over 7 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1998. 2 stations on file (most recent sample 2025).

Fish Species (DNR-rated)

Panfish(Abundant)Largemouth Bass(Common)Northern Pike(Common)Walleye(Common)Smallmouth Bass(Present)

Lake Details

Max depth

43 ft

Surface area

79 acres

Public access

Yes

Listed by Wisconsin DNR

Recreation & Access

1
Boat Landings
Yes
Public Access
  • North 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 Lake

Compare lakeside cabins, hotels, and vacation rentals near North Lake in Florence 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 Lake

Prices for Oct 9–11, 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.

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Follow North Lake’s readings

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Fish Species

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

Fishing North 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 SnailEurasian Water-MilfoilRusty CrayfishZebra Mussel

Based on 7 years of monitoring (2020–2026).

  • Water clarity

    Improving

    7 years

See year-by-year chart →

Nearby Lakes in Florence County

Frequently asked questions about North Lake

Where is North Lake?

North Lake is a lake in Florence 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 Lake?

North Lake in Florence County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 15 ft visibility. Maximum depth: 43 ft. Surface area: 79 acres.

Measurements on this page ↑

Is North Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

How deep is North Lake?

North Lake has a maximum depth of 43 feet. The lake covers 79 acres.

What fish are in North Lake?

Fish species found in North Lake include Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye. North Lake is located in Florence County, Wisconsin.

Fish on this page ↑

What did the DNR fisheries survey find at North Lake?

Wisconsin DNR rates Panfish as abundant on North Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows North Lake’s water-quality measurements separately, and the water-quality trend over 7 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.

DNR on this page ↑

What is the water level at North Lake?

The USGS snapshot on this page for North Lake is 907.01 ft of water-surface elevation, recorded Jul 6, 2026, 5:00 AM at gauge 05545000. Current Conditions hydrates a live NWIS reading from that same station when the gauge responds. A missed live fetch is not an all-clear.

Conditions on this page ↑

Are there boat ramps on North Lake?

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

Access on this page ↑

Can I fish at North Lake?

North 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.

Access on this page ↑

Oligotrophic Lakes in Wisconsin

Where this data comes from

19 measurements from 1 monitoring station, 2020–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Wisconsin Department of Natural ResourcesWIDNR_WQX19 samples · 2020–2026
Monitoring station identifiers (1)

EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.

Other records on this page

Fish and recreation data from Wisconsin DNR Lakes

Named boat-access points from the USGS National Boat Ramps inventory