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LakeQuality
A

Rice Lake

Iron County, WisconsinMesotrophic

Rice Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Iron County. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Mesotrophic conditions dominate at Rice Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. Rice Lake reaches 21 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. The lake's 114 acres and partial shoreline records put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Rice Lake ranks 29 of 34 in Iron County — at the lower end of the locally monitored distribution.

Rice Lake has at least one documented invasive species (Banded Mystery Snail), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. The fishery includes walleye alongside the lake's other 6 documented species — a notable draw for Wisconsin anglers. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-08-26. Grade methodology: LakeGrade methodology.

Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Crystal clear, you can see 16.4 ft down. Phosphorus level: 22.5 µg/L. Trophic State Index: 43.

MetricValueGrade
Water Clarity (Secchi Depth)16.4 ftA
Phosphorus22.5 µg/LB
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)43Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth21 ft
Surface Area114 acres

Fish Species

Click a species to see all Wisconsin and Minnesota lakes where it is found.

→ Best fishing times for Rice Lake (14-day solunar calendar)

→ Is it safe to eat fish from Rice Lake? (mercury & PFAS guide)

Rice Lake fishing regulations (limits, seasons, special rules)

Invasive Species

Banded Mystery SnailCurly-Leaf Pondweed

Water Quality Trend: Improving

Based on 7 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.264 m/yr7
Phosphorus Improving-1.2 µg/L/yr6

Location

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County Ranking

Ranked #29 of 34 lakes in Iron County

Nearby Lakes in Iron County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 2009. 1 station on file (most recent sample 2025).

Fish Species (DNR-rated)

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

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2025-08-26

Monitoring stations: 1