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LakeQuality

Rice Lake

Walworth County, Wisconsin144 acresView mapDirections

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

Clarity
1.7 ft
Murkier than most
Secchi · sampled 2026
Phosphorus
60.3 µg/L
More phosphorus than most
Measured by Wisconsin DNR
Max depth
10 ft
Bathymetric survey
Area
144 acres
Surface area
Type
Eutrophic
Trophic class
Trend
Worsening
7 years of samples
  • Eutrophic
  • Impaired · Nutrients (phosphorus, nitrogen)
  • 2 aquatic invasives
  • 10 ft max depth
  • Public access

Rice Lake in Walworth County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 1.7 ft visibility. Phosphorus: 60.3 µg/L. Maximum depth: 10 ft. Surface area: 144 acres.

Wisconsin DNR lists Panfish as common on Rice Lake. DNR survey details →

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Rice Lake is a 144-acre productive, nutrient-rich eutrophic lake in Walworth County, Wisconsin with a maximum depth of 10 feet. Overall water quality is declining over recent sampling years. The lake supports 3 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 1 public boat landing. Compared to the 18 other monitored lakes in Walworth County, Rice Lake ranks #16 for water quality.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-20. Methodology: how these readings are compared.

What Rice Lake is good for

From access and monitoring records, not editorial picks.

  • Boat launch1 documented ramp
  • Fishing3 species recorded

Swimming conditions

Readings only

Recreation use not supported

Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

Bacteria testing record
from E. coli testing · 119 samples, 9 seasons

Based on E. coli testing, Rice Lake rarely exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0.8% of 119 samples across 9 seasons.

This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Wisconsin’s current beach and health-department advisories before swimming.

Whether Rice 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 Rockford →

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Water quality measurements for Rice Lake

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

Very murky, less than 1.7 ft of visibility. Phosphorus 60.3 µg/L. TSI 66.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)1.7ftMeasured, not scored

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

Total phosphorus60.3µg/LPoor
GoodFairPoor
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.66Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Rice Lake

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

DNR fisheries survey

Wisconsin DNR lists Panfish as common on Rice Lake.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Rice Lake’s water-quality measurements separately, and the water-quality trend over 7 years of monitoring is declining. 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 1986. 3 stations on file (most recent sample 2025).

DNR Assessment
Fair · Reservoir lake
Trophic State Index 64 (eutrophic) · 5-year average

Fish Species (DNR-rated)

Panfish(Common)Largemouth Bass(Present)Northern Pike(Present)

Lake Details

Max depth

10 ft

Surface area

144 acres

Public access

Yes

Listed by Wisconsin DNR

Lake Size & Watershed

Watershed (drainage) area

11 sq mi

HydroLAKES / HydroSHEDS

Shoreline

2.5 mi

HydroLAKES / HydroSHEDS

Elevation

869 ft

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

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Rice 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 Rice Lake

Compare lakeside cabins, hotels, and vacation rentals near Rice Lake in Walworth 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Rice Lake are listed below.

Top-rated places to stay near Rice 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 Rice Lake’s readings

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Fish Species

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

Fishing Rice 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.

Curly-Leaf PondweedEurasian Water-MilfoilHybrid Eurasian / Northern Water-MilfoilPurple Loosestrife

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

  • Water clarity

    Worsening

    7 years

  • Phosphorus

    Worsening

    +3.82 µg/L/yr7 years

See year-by-year chart →

Reservoir Info (USACE NID)

Rice Lake is a man-made reservoir impounded by the Rice Lake (completed 1968), built primarily for recreation on the Trib Whitewater Creek; earth-type dam, 18 ft tall and 200 ft long.

Surface area
137 ac
Normal storage
460 ac-ft
Max storage
1,140 ac-ft
Drainage area
11.8 sq mi
Hazard class
High
Owner
Wisconsin Department of Natural Resources

Source: USACE National Inventory of Dams, NID ID WI00856 · Operator website

EPA Impairment Status

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

Causes of impairment

Nutrients (phosphorus, nitrogen)

Designated uses not supporting: Aquatic life, Recreation.

Source: EPA ATTAINS assessment unit WI10001551 · Official waterbody report

Regulated Pollution Sources Nearby

1 EPA-permitted facility operate within about 5 miles of Rice Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.

  • Katzman Farms Inc
    La Grange, Town Of · 3.3 mi away · NPDES WI0064769
    Recent violation

Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.

Nearby Lakes in Walworth County

Frequently asked questions about Rice Lake

Where is Rice Lake?

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

What is the water quality of Rice Lake?

Rice Lake in Walworth County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 1.7 ft visibility. Phosphorus: 60.3 µg/L. Maximum depth: 10 ft. Surface area: 144 acres.

Measurements on this page ↑

Is Rice Lake safe to swim in?

Based on E. coli testing, Rice Lake rarely exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0.8% of 119 samples across 9 seasons. That is a historical summary of past bacteria testing, not a current reading and not a swimming clearance. Bacteria levels can spike quickly after heavy rain, so whether Rice Lake is safe to swim in today is a call for Wisconsin's water agency and the county health department; check their current beach advisories before you swim.

Swimming on this page ↑

How deep is Rice Lake?

Rice Lake has a maximum depth of 10 feet. The lake covers 144 acres.

What fish are in Rice Lake?

Fish species found in Rice Lake include Panfish, Largemouth Bass, Northern Pike. Rice Lake is located in Walworth County, Wisconsin.

Fish on this page ↑

What did the DNR fisheries survey find at Rice Lake?

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

DNR on this page ↑

Are there boat ramps on Rice Lake?

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

Access on this page ↑

Can I fish at Rice Lake?

Rice 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 ↑

Where this data comes from

58 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_WQX58 samples · 2020–2026

Analytical methods

  • Phosphorus by Colorimetry
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

Impairment status from EPA ATTAINS 303(d) database

Regulated discharger data from EPA ECHO (ICIS-NPDES)

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