Newton Lake
Lake County, Minnesota516 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Newton Lake. Here is what has been measured.
- spiny waterflea
- 47 ft max depth
- Limited data
Newton Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 5 ft visibility. Maximum depth: 47 ft. Surface area: 516.24 acres.
Minnesota DNR's Standard Survey on August 13, 2018 caught 4.67 walleye per gill net at Newton Lake. Length samples in the latest survey that recorded them ran 4–26 inches. DNR survey details →
Newton Lake is a 516-acre lake in Lake County, Minnesota with a maximum depth of 47 feet. Overall water quality is improving over recent sampling years. The lake supports 8 documented fish species including black crappie, northern pike, and rock bass. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-06-11. Methodology: how these readings are compared.
Newton Lake covers about 520 acres in Lake County. For a place on the water, look through cabin and lake-house rentals near Newton Lake on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.
What Newton Lake is good for
From access and monitoring records, not editorial picks.
- Fishing8 species recorded
- Deep water47 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Newton Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Newton Lake
These are the measurements Minnesota PCA publishes for Newton Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5 ft. TSI 54.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No 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. | 54 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Newton Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on August 13, 2018 caught 4.67 walleye per gill net at Newton Lake. Length samples in the latest survey that recorded them ran 4–26 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Newton Lake’s water-quality measurements separately, and the water-quality trend over 4 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
10 surveys on file from MN DNR Fisheries. Most recent: 2025-08-08 (Targeted Survey).
10 surveys on file · most recent 2025-08-08 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Yellow Perch | 5.84 | 5–11 in 2018-08-13 | 0.28 lb |
| Walleye | 3.49 | 4–26 in 2018-08-13 | 0.54 lb |
| Rock Bass | 2.72 | 5–10 in 2018-08-13 | 0.57 lb |
| White Sucker | 2.18 | 8–21 in 2018-08-13 | 2.74 lb |
| Northern Pike | 1.82 | 10–34 in 2018-08-13 | 1.85 lb |
| Tullibee (Cisco) | 1.53 | 8–11 in 2007-08-20 | 0.28 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Yellow Perch
Walleye
Rock Bass
White Sucker
From the 2025-08-08 survey
Temperature and dissolved oxygen measurements were collected from the deepest basin in Newton Lake on August 8th, 2025. This was done to evaluate the quantity and quality of cold, oxygenated water (i.e., oxythermal habitat) available to Cisco, also known as Tullibee, the most sensitive coldwater species present in…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Newton Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — NewtonFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
47 ft
Surface area
516 acres
Shoreline
12.1 mi
Littoral zone
69%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
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Stays near Newton Lake
Compare lakeside cabins, hotels, and vacation rentals near Newton Lake in Lake County, Minnesota — 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 Newton Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
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Planning a whole trip? See where to stay at Minnesota’s top lakes →
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Fish Species
Click a species to see every lake where it is documented.
Fishing Newton 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: Improving
Based on 4 years of monitoring (2021–2025).
Water clarity
Improving4 years
Nearby Lakes in Lake County
Frequently asked questions about Newton Lake
Where is Newton Lake?
- Newton Lake is a lake in Lake County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Newton Lake?
- Newton Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 5 ft visibility. Maximum depth: 47 ft. Surface area: 516.24 acres.
Is Newton Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Newton Lake?
- Newton Lake has a maximum depth of 47 feet. The lake covers 516.24 acres.
What fish are in Newton Lake?
- Fish species found in Newton Lake include black crappie, northern pike, rock bass, shorthead redhorse, smallmouth bass, walleye, white sucker, yellow perch. Newton Lake is located in Lake County, Minnesota.
What did the DNR fisheries survey find at Newton Lake?
- Minnesota DNR's Standard Survey on August 13, 2018 caught 4.67 walleye per gill net at Newton Lake. Length samples in the latest survey that recorded them ran 4–26 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Newton Lake’s water-quality measurements separately, and the water-quality trend over 4 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Newton Lake?
- Public access to Newton Lake is listed as no on the lake record, so confirm before you make the trip. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.
Explore Newton Lake across LakeQuality
Depth, room, public access, and the state wake-sport rules
Fish species and the cleanest lakes across Minnesota
Fish species and best lakes in Lake County
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its readings
Lakes in the Lake Superior Basin (MN+WI), ranked by water quality
Minnesota's cleanest lakes, ranked on agency measurements
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State Parks Near Newton Lake
Other Lakes in Minnesota
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Where this data comes from
5 measurements from 3 monitoring stations, 2021–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA5 samples · 2021–2025
Analytical methods
- Field measurement/observation, generic method
Monitoring station identifiers (3)
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
Lake details from Minnesota DNR LakeFinder