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.
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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.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6 ft | D |
| Phosphorus | 33 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 29 ft |
| Surface Area | 622.42 acres |
| Shoreline Length | 9.1 mi |
| Littoral Zone | 77% |
| Public Access | Yes |
Fish Species
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).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.08 m/yr | 2 |
Ice Season
Historical ice data from Minnesota DNR (4 observations).
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2007-04-12 (2007) | 2014-05-06 (2014) |
| Ice-In | 2006-11-11 (2006) | 2006-11-11 (2006) |
Most recent ice-out: 2018-05-02
Location
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.
- BAlice LakeItasca County · mi · Higher grade (C → B)
- BGreeley LakeItasca County · mi · Higher grade (C → B)
- BThird River Flowage LakeItasca County · mi · Higher grade (C → B)
- CMiddle Pigeon LakeItasca County · mi · Higher overall water quality score
Nearby Lakes in Itasca County
More Minnesota Lake Rankings
Other Grade C Lakes in Minnesota
Eutrophic Lakes in Minnesota
Compare Dixon Lake With Nearby Lakes
DNR Fisheries Survey Summary
18 surveys on file from MN DNR Fisheries. Most recent: 2025-08-25 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| BLH | 16.50 | — |
| Yellow Perch | 15.18 | 0.23 lb |
| Black Bullhead | 10.30 | 0.4 lb |
| Brown Bullhead | 7.03 | 0.71 lb |
| JND | 6.87 | — |
| Northern Pike | 4.83 | 1.32 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
Black Bullhead
Brown Bullhead
Northern Pike
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…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Dixon Lake. 4 reports on file.
- —Fisheries Lake Survey — DixonFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Dixon (0675)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — DixonFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — DixonPublic Water Access Sites · MN DNR LakeFinder
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
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