Round Lake
Round Lake in Price County, Wisconsin has a water quality grade of C (Fair). Water clarity: 4 ft visibility. Phosphorus: 28 µg/L. Maximum depth: 24 ft. Surface area: 748 acres.
Wisconsin DNR rates Walleye as abundant on Round Lake. DNR survey details →
- Clarity
- 4 ft
- Max depth
- 24 ft
- Area
- 748 acres
- Type
- Eutrophic
- Trend
- → Stable
- Public access
- Yes
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Round Lake is a 748-acre productive, nutrient-rich eutrophic lake in Price County, Wisconsin with a maximum depth of 24 feet. Water quality is graded C based on 1 sampling years through 2026. Water clarity is declining over recent sampling years. The lake supports 6 documented fish species including Musky, Panfish, and Smallmouth Bass. Public access is available with 2 public boat landings. Compared to the 12 other monitored lakes in Price County, Round Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-22. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyModerate
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Generally safe for swimming, moderate water quality
Water Quality Grade: C (Fair)
Murky, only visible to about 4 ft. Phosphorus level: 28 µg/L. Trophic State Index: 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4 ft | Not graded |
| Phosphorus | 28 µg/L | Fair |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Round Lake
Compare lakeside cabins, hotels, and vacation rentals near Round Lake in Price 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 Round Lake
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Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Blue-Green Algae (Cyanobacteria)
There’s no recent EPA CyAN cyanobacteria estimate for Round Lake — clouds, ice, or an off-season gap in coverage. The most recent reading was low (11,588 cells/mL) on May 16, 2026.
Blue-green algae can appear and clear within days, so check your state’s current advisory before swimming. EPA CyAN ↗
Wisconsin DNR rates Walleye as abundant on Round Lake.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Round Lake C from EPA Water Quality Portal chemistry, and the water-quality trend over 7 years of monitoring is stable. 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 1999. 2 stations on file (most recent sample 2025).
Fish Species (DNR-rated)
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 24 ft |
| Surface Area | 748 acres |
| Public Access | Yes |
Recreation & Access
- Round LakePublic
- Round LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Round 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.
Water Quality Trend: → Stable
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.112 m/yr | 5 |
| Phosphorus | ↑ Improving | -0.87 µg/L/yr | 7 |
EPA Impairment Status
Round Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit WI10003621 · Official waterbody report · Matched by proximity (2.41 km)
County Ranking
Ranked #5 of 13 lakes in Price County
Nearby Lakes With Higher Grades
Round Lake holds Grade C. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.
See full comparison →Nearby Lakes in Price County
Frequently asked questions about Round Lake
Where is Round Lake?
- Round Lake is a lake in Price County, Wisconsin. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Round Lake?
- Round Lake in Price County, Wisconsin has a water quality grade of C (Fair). Water clarity: 4 ft visibility. Phosphorus: 28 µg/L. Maximum depth: 24 ft. Surface area: 748 acres.
Is Round Lake safe to swim in?
- Generally safe for swimming, moderate water quality. Round Lake has a water quality grade of C (Fair). Always check local health department advisories before swimming.
How deep is Round Lake?
- Round Lake has a maximum depth of 24 feet. The lake covers 748 acres.
What fish are in Round Lake?
- Fish species found in Round Lake include Musky, Panfish, Smallmouth Bass, Northern Pike, Walleye, Sturgeon. Round Lake is located in Price County, Wisconsin.
What did the DNR fisheries survey find at Round Lake?
- Wisconsin DNR rates Walleye as abundant on Round Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Round Lake C from EPA Water Quality Portal chemistry, and the water-quality trend over 7 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.
Does Round Lake have blue-green algae?
- There is no recent EPA CyAN cyanobacteria estimate for Round Lake (clouds, ice, or an off-season gap). The most recent reading was low (11,588 cells/mL). Blue-green algae can appear and clear within days, so check Wisconsin's current advisory before swimming.
Are there boat ramps on Round Lake?
- Round Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Round Lake, Round Lake. Public access is listed as yes.
Explore Round Lake across LakeQuality
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Where this data comes from
40 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 Resources
WIDNR_WQX40 samples · 2020–2026
Analytical methods
- Phosphorus by Colorimetry
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
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