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LakeQuality

Sapokesick Lake

NR
Not yet rated
7 ft clear · Mesotrophic · 252 acres
Limited DataMesotrophic

Sapokesick Lake in Menominee County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 7 ft visibility. Maximum depth: 35 ft. Surface area: 252 acres.

Wisconsin DNR rates Largemouth Bass and Northern Pike as abundant on Sapokesick Lake. DNR survey details →

Clarity
7 ft
Typical in August
72°F
Max depth
35 ft
Area
252 acres
Trend
Declining
Public access
Yes

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Why Sapokesick Lake has no grade

We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Sapokesick Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).

Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.

Sampling is run by WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Sapokesick Lake is a 252-acre lake in Menominee County, Wisconsin with a maximum depth of 35 feet. Overall water quality is declining over recent sampling years. The lake supports 2 documented fish species including Largemouth Bass and Northern Pike. Public access is available.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-15. Grade methodology: LakeQuality methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

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Water quality measurements for Sapokesick Lake

These readings exist but are not enough for an A–F grade — see why.

Moderate clarity, visible to about 7 ft. Trophic State Index: 49.

MetricValueGrade
Water Clarity (Secchi Depth)7 ftNot graded
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)49Mesotrophic

Moderate nutrients, good water quality

Where to stay near Sapokesick Lake

Compare lakeside cabins, hotels, and vacation rentals near Sapokesick Lake in Menominee 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 Sapokesick Lake

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

Water Temperature

Sapokesick Lake typically sits around 72°F at the surface in August. Summer average is about 74°F. Usually warmest in Jul (about 77°F) and coldest in Feb (about 38°F). These are typical values by month — not a live reading.

Jan
Feb
38°
Mar
Apr
50°
May
63°
Jun
73°
Jul
77°
Aug
72°
Sep
74°
Oct
55°
Nov
Dec

Typical surface water temperature by month, from 162 field readings (20242026) via the EPA Water Quality Portal. See the full Sapokesick Lake water temperature breakdown →

DNR fisheries survey

Wisconsin DNR rates Largemouth Bass and Northern Pike as abundant on Sapokesick Lake.

A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Sapokesick Lake — official chemistry is on file, not a letter, 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 2002. 7 stations on file (most recent sample 2025).

DNR Assessment
Excellent · Deep Headwater lake
Trophic State Index 43 (mesotrophic) · 5-year average

Fish Species (DNR-rated)

Largemouth Bass(Abundant)Northern Pike(Abundant)

Lake Details

CharacteristicValue
Maximum Depth35 ft
Surface Area252 acres
Public AccessYes

Fish Species

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

Fishing Sapokesick 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.

Banded Mystery SnailCurly-Leaf PondweedEurasian Water-MilfoilHybrid Eurasian / Northern Water-MilfoilZebra Mussel

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

MetricTrendChange/YearYears
Water Clarity Declining-0.42 m/yr7
Phosphorus Declining+1.07 µg/L/yr7
See year-by-year chart →

Graded lakes near Sapokesick Lake

Sapokesick Lake has no grade, but these lakes within a short drive do.

Nearby Lakes in Menominee County

Frequently asked questions about Sapokesick Lake

Where is Sapokesick Lake?

Sapokesick Lake is a lake in Menominee County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.

What is the water quality grade for Sapokesick Lake?

Sapokesick Lake in Menominee County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 7 ft visibility. Maximum depth: 35 ft. Surface area: 252 acres.

Is Sapokesick Lake safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Sapokesick Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.

What is the water temperature of Sapokesick Lake?

Sapokesick Lake typically sits around 72°F at the surface in August, from 162 EPA Water Quality Portal field readings (2024–2026). That is a typical value for the month, not a live reading.

How deep is Sapokesick Lake?

Sapokesick Lake has a maximum depth of 35 feet. The lake covers 252 acres.

What fish are in Sapokesick Lake?

Fish species found in Sapokesick Lake include Largemouth Bass, Northern Pike. Sapokesick Lake is located in Menominee County, Wisconsin.

What did the DNR fisheries survey find at Sapokesick Lake?

Wisconsin DNR rates Largemouth Bass and Northern Pike as abundant on Sapokesick Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Sapokesick Lake — official chemistry is on file, not a letter, 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.

Mesotrophic Lakes in Wisconsin

Where this data comes from

65 measurements from 3 monitoring stations, 2021–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Wisconsin Department of Natural ResourcesWIDNR_WQX65 samples · 2021–2026
Monitoring station identifiers (3)

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

Lake size & watershed from HydroLAKES (HydroSHEDS)

Fish and recreation data from Wisconsin DNR Lakes