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LakeQuality

Little Spirit Lake

D
Grade D — Nutrient-rich
Nutrient-rich · #3 of 6 lakes in the county · 3.3 ft clear · Eutrophic · 624 acres
Eutrophic

Little Spirit Lake in Jackson County, Minnesota has a water quality grade of D (Nutrient-rich). Water clarity: 3.3 ft visibility. Phosphorus: 236 µg/L. Chlorophyll-a (algae): 19.3 µg/L. Maximum depth: 8 ft. Surface area: 624.28 acres.

Clarity
3.3 ft
Typical in August
76°F
Max depth
8 ft
Area
624 acres
Type
Eutrophic
Trend
Improving
Public access
Yes

Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Little Spirit Lake

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FPearl Lake1 ft clear · Jackson CountyView →
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Little Spirit Lake is a 624-acre productive, nutrient-rich eutrophic lake in Jackson County, Minnesota with a maximum depth of 8 feet. Water quality is graded D based on 2 sampling years through 2024. Overall water quality is improving over recent sampling years. The lake supports 23 documented fish species including bigmouth buffalo, black bullhead, and black crappie. Public access is available with 5 public boat landings. Compared to the 5 other monitored lakes in Jackson County, Little Spirit Lake ranks #3 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-09. Grade methodology: LakeGrade methodology.

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Swimming Safety

Grade only

Algae risk

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.

Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum

Compare the safest swimming lakes near Mankato

Get alerts for Little Spirit Lake

Water Quality Grade: D (Nutrient-rich)

Very murky, less than 3.3 ft of visibility. Phosphorus level: 236 µg/L. Chlorophyll-a: 19.3 µg/L. Trophic State Index: 67.

MetricValueGrade
Water Clarity (Secchi Depth)3.3 ftNot graded
Phosphorus236 µg/LPoor
Chlorophyll-a (Algae)19.3 µg/LFair
Trophic State Index (TSI)67Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Little Spirit Lake

Compare lakeside cabins, hotels, and vacation rentals near Little Spirit Lake in Jackson 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 grade measures nutrients and algae, not lodging — cabins and rentals around Little Spirit Lake are listed below.

Top-rated places to stay near Little Spirit Lake

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 trip? Cabins and lodging at Little Spirit Lake · more Minnesota lake trips

Water Temperature

Little Spirit Lake typically sits around 76°F at the surface in August. Summer average is about 75°F. Usually warmest in Jul (about 81°F) and coldest in May (about 58°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
May
58°
Jun
69°
Jul
81°
Aug
76°
Sep
72°
Oct
Nov
Dec

Typical surface water temperature by month, from 43 field readings (20102024) via the EPA Water Quality Portal. See the full Little Spirit Lake water temperature breakdown →

Lake Details

CharacteristicValue
Maximum Depth8 ft
Surface Area624 acres
Shoreline Length10.6 mi
Littoral Zone67%
Public AccessYes

Lake Size & Watershed

Watershed (drainage) area
5 sq mi
Elevation
1,398 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Recreation & Access

5
Boat Landings
Yes
Public Access
  • Kettleson Hogsback ComplexPublic
  • Little Spirit LakePublic

Showing 2 of 5 documented landings from the USGS National Boat Ramps inventory.

Fish Species

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

Fishing Little Spirit 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.

bighead carpsilver carp

DNR Fisheries Survey Summary

14 surveys on file from MN DNR Fisheries. Most recent: 2024-10-09 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Black Bullhead37.080.61 lb
Bluegill31.350.29 lb
Largemouth Bass18.651.68 lb
Yellow Perch13.730.19 lb
Bigmouth Buffalo12.003.79 lb
Spottail Shiner11.49

CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.

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.

Black Bullhead

69 fish · 514 in · 2024-07-22
1890567891011121314

Bluegill

9 fish · 37 in · 2024-07-22
53034567

Largemouth Bass

2 fish · 1919 in · 2020-07-27
210trophy 2019

Yellow Perch

40 fish · 511 in · 2024-07-22
1160trophy 12567891011

From the 2024-10-09 survey

Little Spirit Lake is a 643-acre, class 42 lake located on the Minnesota-Iowa border in Jackson County. Little Spirit Lake has a history of experiencing varying levels of partial winterkill and summer kill conditions due to low dissolved oxygen in the winter and severe algae blooms in the summer. Thus, Little Spirit…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Little Spirit Lake. 3 reports on file.

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

Based on 4 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.037 m/yr4
Phosphorus Declining+40.2 µg/L/yr4
Chlorophyll-a Improving-3.17 µg/L/yr4
See year-by-year chart →

EPA Impairment Status

Little Spirit Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

MercuryNutrients (phosphorus, nitrogen)

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN32-0024-00 · Official waterbody report

County Ranking

Ranked #3 of 6 lakes in Jackson County

Nearby Lakes in Jackson County

Frequently asked questions about Little Spirit Lake

What is the water quality grade for Little Spirit Lake?

Little Spirit Lake in Jackson County, Minnesota has a water quality grade of D (Nutrient-rich). Water clarity: 3.3 ft visibility. Phosphorus: 236 µg/L. Chlorophyll-a (algae): 19.3 µg/L. Maximum depth: 8 ft. Surface area: 624.28 acres.

Is Little Spirit Lake safe to swim in?

Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum. Little Spirit Lake has a water quality grade of D (Nutrient-rich). Algae concentration (chlorophyll-a) is 19.3 µg/L. Always check local health department advisories before swimming.

What is the water temperature of Little Spirit Lake?

Little Spirit Lake typically sits around 76°F at the surface in August, from 43 EPA Water Quality Portal field readings (2010–2024). That is a typical value for the month, not a live reading.

How deep is Little Spirit Lake?

Little Spirit Lake has a maximum depth of 8 feet. The lake covers 624.28 acres.

What fish are in Little Spirit Lake?

Fish species found in Little Spirit Lake include bigmouth buffalo, black bullhead, black crappie, bluegill, brown bullhead, channel catfish, common carp, freshwater drum, gizzard shad, green sunfish, largemouth bass, muskellunge, northern pike, northern pike (silver phase), orangespotted sunfish, pumpkinseed, quillback, shortnose gar, walleye, white bass, white sucker, yellow bullhead, yellow perch. Little Spirit Lake is located in Jackson County, Minnesota.

Are there boat ramps on Little Spirit Lake?

Little Spirit Lake has 5 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Kettleson Hogsback Complex, Little Spirit Lake, among others. Public access is listed as yes.

State Parks Near Little Spirit Lake

Where this data comes from

62 measurements from 2 monitoring stations, 2021–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Iowa DNR Surface Water Monitoring Data21IOWA_WQX47 samples · 2021–2024
  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA15 samples · 2022

Analytical methods

  • Unknown
  • Phosphorus by Colorimetry
  • 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
  • In-Vitro Determination of Chlorophyll
  • ISU modification of APHA 2130-B
  • Field measurement/observation, generic method
  • 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (2)

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)

Lake details from Minnesota DNR LakeFinder

Named boat-access points from the USGS National Boat Ramps inventory