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LakeQuality
C

Jorgens Lake

St. Louis County, MinnesotaLimited DataMesotrophic

Jorgens Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Mesotrophic conditions dominate at Jorgens Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake bottoms out at 21 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Jorgens Lake is small — 73 acres alongside 2.8 miles of shoreline — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Jorgens Lake ranks 89 of 187 in St. Louis County — solidly in the upper half of the local distribution.

Jorgens Lake has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. The fishery is bass-led, with 3 documented species across the lake's records. No formal public access is documented at Jorgens Lake — most use is by shoreline residents and their guests. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2023-08-21. Grade methodology: LakeGrade methodology.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Moderate clarity, visible to about 7.2 ft. Trophic State Index: 49.

MetricValueGrade
Water Clarity (Secchi Depth)7.2 ftC
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)49Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth21 ft
Surface Area72.61 acres
Shoreline Length2.8 mi
Public AccessNo

Fish Species

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

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

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

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

Water Quality Trend: Declining

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.02 m/yr5
Phosphorus Declining+2.55 µg/L/yr5

Location

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County Ranking

Ranked #89 of 187 lakes in St. Louis County

Nearby Lakes in St. Louis County

DNR Fisheries Survey Summary

2 surveys on file from MN DNR Fisheries. Most recent: 2025-07-07 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Northern Pike7.671.96 lb
Largemouth Bass2.211.93 lb
Yellow Perch0.330.08 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.

Northern Pike

51 fish · 1227 in · 2025-07-07
12601214161820222426

Largemouth Bass

17 fish · 617 in · 2025-07-07
42067891011121314151617

Yellow Perch

2 fish · 56 in · 2005-07-05
1056

From the 2025-07-07 survey

Jorgens Lake is located approximately nine miles northeast of Kabetogama, Minnesota. This 72-acre lake has a maximum depth of 21 feet and dark tannin-stained water. A fisheries survey was completed in Jorgens Lake during the 2025 field season as part of a regular rotation of surveys in the International Falls…

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 Jorgens Lake. 1 report on file.

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Lake details from Minnesota DNR LakeFinder

Most recent sample: 2023-08-21

Monitoring stations: 1