Skip to main content
LakeQuality

Schultz Lake

Kandiyohi County, MinnesotaView mapDirections

Minnesota PCA publishes the water-quality measurements for Schultz Lake. Here is what has been measured.

Clarity
1.3 ft
Murkier than most
Secchi · sampled 2025
Phosphorus
189.5 µg/L
More phosphorus than most
Measured by Minnesota PCA
Chlorophyll-a
103 µg/L
More algae than most
Measured by Minnesota PCA
Water temp
~68°F
Typical for Sep · EPA WQP
Type
Hypereutrophic
Trophic class
Trend
Worsening
6 years of samples
  • Hypereutrophic

Schultz Lake in Kandiyohi County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 1.3 ft visibility. Phosphorus: 189.5 µg/L. Chlorophyll-a (algae): 103 µg/L.

Loading map…

Schultz Lake is a highly nutrient-loaded hypereutrophic lake in Kandiyohi County, Minnesota. Overall water quality is declining over recent sampling years. Limited fish-species data available. No public access — the lake is private or restricted. Compared to the 24 other monitored lakes in Kandiyohi County, Schultz Lake ranks #22 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-16. Methodology: how these readings are compared.

For a place on the water, look through cabin and lake-house rentals near Schultz Lake on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.

Swimming conditions

Readings only

Algae risk

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.

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

Whether Schultz 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.

Compare swimming lakes near Willmar →

Get alerts for Schultz Lake →

Water quality measurements for Schultz Lake

These are the measurements Minnesota PCA publishes for Schultz 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 1.3 ft of visibility. Phosphorus 189.5 µg/L. Chlorophyll-a 103 µg/L. TSI 76.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)1.3ftMeasured, not scored

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

Total phosphorus190µg/LPoor
GoodFairPoor
Chlorophyll-a (algae)103µg/LPoor
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.76Hypereutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Very high nutrients, dense algae, poor clarity

Ask about Schultz Lake

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

Water Temperature

Schultz Lake typically sits around 68°F at the surface in September. Summer average is about 75°F. Usually warmest in Jul (about 79°F) and coldest in May (about 63°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
63°
May
73°
Jun
79°
Jul
74°
Aug
68°
Sep
Oct
Nov
Dec

Column height runs from this lake’s coldest month (63°F) to its warmest (79°F).

Typical surface water temperature by month, from 53 field readings (2011–2025) via the EPA Water Quality Portal. See the full Schultz Lake water temperature breakdown →

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Schultz Lake. 1 report on file.

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

Stays via Stay22

Stays near Schultz Lake

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

Top-rated places to stay near Schultz 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.

Planning a whole trip? See where to stay at Minnesota’s top lakes →

Follow Schultz Lake’s readings

Email me when new measurements post for this lake. Updates stay free.


Or email

Fishing Schultz Lake

Based on 6 years of monitoring (2020–2025).

  • Water clarity

    Worsening

    6 years

  • Phosphorus

    Stable

    -1.53 µg/L/yr6 years

  • Chlorophyll-a

    Worsening

    +4.5 µg/L/yr6 years

See year-by-year chart →

Nearby Lakes in Kandiyohi County

Frequently asked questions about Schultz Lake

Where is Schultz Lake?

Schultz Lake is a lake in Kandiyohi County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.

What is the water quality of Schultz Lake?

Schultz Lake in Kandiyohi County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 1.3 ft visibility. Phosphorus: 189.5 µg/L. Chlorophyll-a (algae): 103 µg/L.

Measurements on this page ↑

Is Schultz Lake safe to swim in?

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

Swimming on this page ↑

What is the water temperature of Schultz Lake?

Schultz Lake typically sits around 68°F at the surface in September, from 53 EPA Water Quality Portal field readings (2011–2025). That is a typical value for the month, not a live reading.

Temp on this page ↑

Can I fish at Schultz Lake?

Public access to Schultz 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.

Hypereutrophic Lakes in Minnesota

Where this data comes from

89 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA89 samples · 2020–2025

Analytical methods

  • Field measurement/observation, generic method
  • Phosphorus by Two Reagent Colorimetry
  • 10200 H ~ Chlorophyll a-b-c Determination
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.