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LakeQuality

Bingham Lake

C
Grade C — Fair
Fair · #1 of 3 lakes in the county · 4 ft clear · Eutrophic · 270 acres
Eutrophic

Bingham Lake in Cottonwood County, Minnesota has a water quality grade of C (Fair). Water clarity: 4 ft visibility. Phosphorus: 46.5 µg/L. Chlorophyll-a (algae): 5.6 µg/L. Maximum depth: 10 ft. Surface area: 269.75 acres.

Clarity
4 ft
Typical in August
76°F
Max depth
10 ft
Area
270 acres
Type
Eutrophic
Trend
Improving
Public access
Yes

Next lake in Cottonwood County

DCottonwood Lake2.1 ft clear · Cottonwood CountyView →
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Bingham Lake is a 270-acre productive, nutrient-rich eutrophic lake in Cottonwood County, Minnesota with a maximum depth of 10 feet (8-foot average). Water quality is graded C based on 2 sampling years through 2025. Overall water quality is improving over recent sampling years. The lake supports 8 documented fish species including bigmouth buffalo, black bullhead, and black crappie. Public access is available with 1 public boat landing. Compared to the 2 other monitored lakes in Cottonwood County, Bingham Lake ranks #1 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-26. Grade methodology: LakeGrade methodology.

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Swimming Safety

Grade only

Moderate

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

Compare the safest swimming lakes near Mankato

Get alerts for Bingham Lake

Water Quality Grade: C (Fair)

Murky, only visible to about 4 ft. Phosphorus level: 46.5 µg/L. Chlorophyll-a: 5.6 µg/L. Trophic State Index: 55.

MetricValueGrade
Water Clarity (Secchi Depth)4 ftNot graded
Phosphorus46.5 µg/LFair
Chlorophyll-a (Algae)5.6 µg/LGood
Trophic State Index (TSI)55Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Bingham Lake

Compare lakeside cabins, hotels, and vacation rentals near Bingham Lake in Cottonwood 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 Bingham 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 whole trip? See where to stay at Minnesota’s top lakes →

Water Temperature

Bingham Lake typically sits around 76°F at the surface in August. Summer average is about 74°F. Usually warmest in Jul (about 77°F) and coldest in Jun (about 69°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
May
Jun
69°
Jul
77°
Aug
76°
Sep
71°
Oct
Nov
Dec

Typical surface water temperature by month, from 33 field readings (20242025) via the EPA Water Quality Portal. See the full Bingham Lake water temperature breakdown →

Blue-Green Algae (Cyanobacteria)

No current satellite reading

There’s no recent EPA CyAN cyanobacteria estimate for Bingham Lake — clouds, ice, or an off-season gap in coverage. The most recent reading was moderate (35,975 cells/mL) on November 29, 2024.

Blue-green algae can appear and clear within days, so check your state’s current advisory before swimming. EPA CyAN ↗

Lake Details

CharacteristicValue
Maximum Depth10 ft
Average Depth8 ft
Surface Area270 acres
Shoreline Length3.2 mi
Littoral Zone100%
Public AccessYes

Lake Size & Watershed

Watershed (drainage) area
6 sq mi
Elevation
1,371 ft

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

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Bingham LakePublic

Fish Species

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

Fishing Bingham Lake

DNR Fisheries Survey Summary

13 surveys on file from MN DNR Fisheries. Most recent: 2022-09-16 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Fathead Minnow550.74
Black Bullhead132.940.29 lb
JND67.66
SUN50.67
Yellow Perch15.470.31 lb
Walleye8.111.65 lb

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

1,211 fish · 411 in · 2022-06-06
84042004567891011

Yellow Perch

92 fish · 511 in · 2022-06-06
24120trophy 12567891011

Walleye

9 fish · 1422 in · 2022-09-16
210141516171819202122

From the 2022-09-16 survey

Bingham Lake is a 269-acre lake, located in Cottonwood County. Since 2018, Bingham Lake has been included in a research project that is evaluating the performance of two strains of Walleye, the Lower Mississippi Strain (LMS) and the Mississippi Strain (MIS). However, during 2020, no stocking was done as no Walleye…

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 Bingham Lake. 3 reports on file.

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

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.154 m/yr6
Phosphorus Improving-40.5 µg/L/yr2
Chlorophyll-a Improving-23.7 µg/L/yr2
See year-by-year chart →

EPA Impairment Status

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

Causes of impairment

Impaired biota (cause unknown)Nutrients (phosphorus, nitrogen)

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

Source: EPA ATTAINS assessment unit MN17-0007-00 · Official waterbody report

Regulated Pollution Sources Nearby

1 EPA-permitted facility operate within about 5 miles of Bingham Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.

  • Poet Biorefining - Bingham Lake
    Bingham Lake · 1.7 mi away · NPDES MN0063118
    Recent violation

Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.

County Ranking

Ranked #1 of 3 lakes in Cottonwood County

Nearby Lakes in Cottonwood County

Frequently asked questions about Bingham Lake

What is the water quality grade for Bingham Lake?

Bingham Lake in Cottonwood County, Minnesota has a water quality grade of C (Fair). Water clarity: 4 ft visibility. Phosphorus: 46.5 µg/L. Chlorophyll-a (algae): 5.6 µg/L. Maximum depth: 10 ft. Surface area: 269.75 acres.

Is Bingham Lake safe to swim in?

Generally safe for swimming, moderate water quality. Bingham Lake has a water quality grade of C (Fair). Algae concentration (chlorophyll-a) is 5.6 µg/L. Always check local health department advisories before swimming.

What is the water temperature of Bingham Lake?

Bingham Lake typically sits around 76°F at the surface in August, from 33 EPA Water Quality Portal field readings (2024–2025). That is a typical value for the month, not a live reading.

How deep is Bingham Lake?

Bingham Lake has a maximum depth of 10 feet and an average depth of 8 feet. The lake covers 269.75 acres.

What fish are in Bingham Lake?

Fish species found in Bingham Lake include bigmouth buffalo, black bullhead, black crappie, bluegill, northern pike, pumpkinseed, walleye, yellow perch. Bingham Lake is located in Cottonwood County, Minnesota.

Does Bingham Lake have blue-green algae?

There is no recent EPA CyAN cyanobacteria estimate for Bingham Lake (clouds, ice, or an off-season gap). The most recent reading was moderate (35,975 cells/mL). Blue-green algae can appear and clear within days, so check Minnesota's current advisory before swimming.

Are there boat ramps on Bingham Lake?

Bingham Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Bingham Lake. Public access is listed as yes.

State Parks Near Bingham Lake

Where this data comes from

150 measurements from 2 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA150 samples · 2020–2025

Analytical methods

  • Field measurement/observation, generic method
  • Phosphorus by Colorimetry
  • 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

Regulated discharger data from EPA ECHO (ICIS-NPDES)

Lake size & watershed from HydroLAKES (HydroSHEDS)

Lake details from Minnesota DNR LakeFinder

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