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C

Dixon Lake

Itasca County, MinnesotaEutrophic

Dixon Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. The two scored sub-grades — clarity and phosphorus — track close together, so neither one is dragging the average down.

Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. The lake bottoms out at 29 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. The lake's 622 acres and 9.1 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Within the 141 graded lakes of Itasca County, Dixon Lake sits at rank 125, near the bottom of the county list.

No invasive species are currently listed at Dixon Lake — the lake remains off the Minnesota infested-waters roster. The fishery includes walleye among the lake's 15 documented species — a notable draw for Minnesota anglers. A documented public access point at Dixon Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-10-02. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Murky, only visible to about 6 ft. Phosphorus level: 33 µg/L. Trophic State Index: 53.

MetricValueGrade
Water Clarity (Secchi Depth)6 ftD
Phosphorus33 µg/LC
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)53Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth29 ft
Surface Area622.42 acres
Shoreline Length9.1 mi
Littoral Zone77%
Public AccessYes

Fish Species

black bullhead,black crappie,bluegill,bowfin (dogfish),brown bullhead,golden redhorse,hybrid sunfish,largemouth bass,northern pike,pumpkinseed,rock bass,walleye,white sucker,yellow bullhead,yellow perch

Click a species to see all Minnesota and Wisconsin lakes where it is found.

→ Best fishing times for Dixon Lake (14-day solunar calendar)

→ Is it safe to eat fish from Dixon Lake? (mercury & PFAS guide)

Dixon Lake fishing regulations (limits, seasons, special rules)

Water Quality Trend: Improving

Based on 2 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.08 m/yr2

Ice Season

Historical ice data from Minnesota DNR (4 observations).

Typical Ice-Out
May 2
EarliestLatest
Ice-Out2007-04-12 (2007)2014-05-06 (2014)
Ice-In2006-11-11 (2006)2006-11-11 (2006)

Most recent ice-out: 2018-05-02

Location

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County Ranking

Ranked #125 of 141 lakes in Itasca County

Cleaner Lakes Within 30 Miles

Dixon Lake holds Grade C. 4 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Itasca County

DNR Fisheries Survey Summary

18 surveys on file from MN DNR Fisheries. Most recent: 2025-08-25 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
BLH16.50
Yellow Perch15.180.23 lb
Black Bullhead10.300.4 lb
Brown Bullhead7.030.71 lb
JND6.87
Northern Pike4.831.32 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.

Yellow Perch

144 fish · 510 in · 2022-06-20
492505678910

Black Bullhead

9 fish · 611 in · 2022-06-20
53067891011

Brown Bullhead

57 fish · 715 in · 2022-06-20
1580789101112131415

Northern Pike

157 fish · 1034 in · 2022-06-20
3216010121416182022242628303234

From the 2025-08-25 survey

A targeted survey of nearshore fish species in Dixon Lake, which is located partially within Leech Lake Band of Ojibwe nation, was conducted on August 25th and 27th, 2025, by Lake Biological Monitoring and Assessment Program staff. Sampling sites were evenly spaced around the lake, and each was sampled by backpack…

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 Dixon Lake. 4 reports on file.

EPA Impairment Status

Dixon 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 MN31-0921-00 · Official waterbody report

Data Sources

Water quality data from the EPA Water Quality Portal

Impairment status from EPA ATTAINS 303(d) database

Grading methodology based on Metropolitan Council standards

Lake details from Minnesota DNR LakeFinder

Ice data from Minnesota DNR Climate

Most recent sample: 2025-10-02

Monitoring stations: 2