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LakeQuality

Kimball Lake

A
Grade A — Excellent
Excellent · #22 of 85 lakes in the county · 18.4 ft clear · Oligotrophic · 190 acres
Oligotrophic

Kimball Lake in Crow Wing County, Minnesota has a water quality grade of A (Excellent). Water clarity: 18.4 ft visibility. Phosphorus: 9 µg/L. Chlorophyll-a (algae): 2.1 µg/L. Maximum depth: 77 ft. Surface area: 189.78 acres.

Clarity
18.4 ft
Max depth
77 ft
Area
190 acres
Type
Oligotrophic
Trend
Stable
Public access
Yes

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ABass Lake16.1 ft clear · Crow Wing CountyView →
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Kimball Lake is a 190-acre cold, clear oligotrophic lake in Crow Wing County, Minnesota with a maximum depth of 77 feet. Water quality is graded A based on 2 sampling years through 2025. Phosphorus level is improving over recent sampling years. The lake supports 16 documented fish species including black crappie, bluegill, and bowfin (dogfish). Public access is available with 1 public boat landing. Compared to the 84 other monitored lakes in Crow Wing County, Kimball Lake ranks #22 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-14. Grade methodology: LakeGrade methodology.

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Swimming Safety

Grade only

Low algae

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.

Excellent for swimming, crystal clear water with minimal algae

Compare the safest swimming lakes near Brainerd

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Water Quality Grade: A (Excellent)

Crystal clear, you can see 18.4 ft down. Phosphorus level: 9 µg/L. Chlorophyll-a: 2.1 µg/L. Trophic State Index: 36.

MetricValueGrade
Water Clarity (Secchi Depth)18.4 ftNot graded
Phosphorus9 µg/LGood
Chlorophyll-a (Algae)2.1 µg/LGood
Trophic State Index (TSI)36Oligotrophic

Low nutrients, clear water, excellent for swimming

Where to stay near Kimball Lake

Compare lakeside cabins, hotels, and vacation rentals near Kimball Lake in Crow Wing 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 Kimball Lake

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

Lake Details

CharacteristicValue
Maximum Depth77 ft
Surface Area190 acres
Shoreline Length3.1 mi
Littoral Zone19%
Public AccessYes

Lake Size & Watershed

Watershed (drainage) area
5 sq mi
Elevation
1,204 ft

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

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Kimball LakePublic

Fish Species

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

Fishing Kimball 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.

Eurasian watermilfoilzebra mussel

DNR Fisheries Survey Summary

11 surveys on file from MN DNR Fisheries. Most recent: 2024-08-14 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Bluntnose Minnow28.65
Largemouth Bass21.660.69 lb
Bluegill20.890.07 lb
IOD20.49
Tullibee (Cisco)11.770.53 lb
JND10.05

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.

Largemouth Bass

115 fish · 518 in · 2022-06-27
3116056789101112131415161718

Bluegill

234 fish · 28 in · 2022-06-27
1085402345678

Tullibee (Cisco)

40 fish · 713 in · 2022-06-27
2010078910111213

From the 2024-08-14 survey

Temperature and dissolved oxygen profiles were collected in the deepest basin in Kimball Lake on August 14, 2024, 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 this lake. Cisco…

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 Kimball Lake. 4 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 Stable+0.108 m/yr6
Phosphorus Improving-0.4 µg/L/yr6
Chlorophyll-a Declining+0.07 µg/L/yr6
See year-by-year chart →

EPA Impairment Status

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

Causes of impairment

Mercury

Source: EPA ATTAINS assessment unit MN18-0361-00 · Official waterbody report

County Ranking

Ranked #22 of 85 lakes in Crow Wing County

Nearby Lakes in Crow Wing County

Frequently asked questions about Kimball Lake

What is the water quality grade for Kimball Lake?

Kimball Lake in Crow Wing County, Minnesota has a water quality grade of A (Excellent). Water clarity: 18.4 ft visibility. Phosphorus: 9 µg/L. Chlorophyll-a (algae): 2.1 µg/L. Maximum depth: 77 ft. Surface area: 189.78 acres.

Is Kimball Lake safe to swim in?

Excellent for swimming, crystal clear water with minimal algae. Kimball Lake has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 2.1 µg/L. Always check local health department advisories before swimming.

How deep is Kimball Lake?

Kimball Lake has a maximum depth of 77 feet. The lake covers 189.78 acres.

What fish are in Kimball Lake?

Fish species found in Kimball Lake include black crappie, bluegill, bowfin (dogfish), brown bullhead, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, smallmouth bass, tullibee (cisco), walleye, white sucker, yellow bullhead, yellow perch. Kimball Lake is located in Crow Wing County, Minnesota.

Are there boat ramps on Kimball Lake?

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

Oligotrophic Lakes in Minnesota

Where this data comes from

64 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 WaterMNPCA64 samples · 2020–2025

Analytical methods

  • Field measurement/observation, generic method
  • Phosphorus by Two Reagent Colorimetry
  • 10200 H ~ Chlorophyll a-b-c Determination
  • 10200 H 2 ~ Chlorophyll a-b-c Determination by spectrophotometer
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