Raddison Lake
Itasca County, Minnesota204 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Raddison Lake. Here is what has been measured.
- 40 ft max depth
- Public access
- Limited data
Raddison Lake in Itasca County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 14.3 ft visibility. Maximum depth: 40 ft. Surface area: 203.56 acres.
Minnesota DNR's Standard Survey on June 17, 2002 caught 14.17 northern pike per gill net at Raddison Lake. Length samples in the latest survey that recorded them ran 9–40 inches. DNR survey details →
Raddison Lake is a 204-acre lake in Itasca County, Minnesota with a maximum depth of 40 feet. Overall water quality is improving over recent sampling years. The lake supports 8 documented fish species including black crappie, bluegill, and largemouth bass. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-08-29. Methodology: how these readings are compared.
What Raddison Lake is good for
From access and monitoring records, not editorial picks.
- Clear water14.3 ft of visibility
- Boat launch1 documented ramp
- Fishing8 species recorded
- Deep water40 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Raddison Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Raddison Lake
These are the measurements Minnesota PCA publishes for Raddison Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 14.3 ft. TSI 39.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 14.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 39 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Raddison Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Raddison Lake typically sits around 62°F at the surface in September. Summer average is about 62°F. Usually warmest in Aug (about 65°F) and coldest in May (about 50°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (50°F) to its warmest (65°F).
Typical surface water temperature by month, from 66 field readings (2018–2025) via the EPA Water Quality Portal. See the full Raddison Lake water temperature breakdown →
Minnesota DNR's Standard Survey on June 17, 2002 caught 14.17 northern pike per gill net at Raddison Lake. Length samples in the latest survey that recorded them ran 9–40 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Raddison Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
4 surveys on file from MN DNR Fisheries. Most recent: 2002-06-17 (Standard Survey).
4 surveys on file · most recent 2002-06-17 (Standard Survey)
24 years old| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Bluegill | 20.13 | 3–9 in 2002-06-17 | 0.17 lb |
| Northern Pike | 4.96 | 9–40 in 2002-06-17 | 2.74 lb |
| Yellow Perch | 4.28 | 5–6 in 2002-06-17 | 0.11 lb |
| Pumpkinseed | 3.98 | 3–8 in 2002-06-17 | 0.18 lb |
| Black Crappie | 3.11 | 4–11 in 2002-06-17 | 0.39 lb |
| Largemouth Bass | 1.31 | 5–12 in 2002-06-17 | 0.48 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.
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.
Bluegill
Northern Pike
Yellow Perch
Pumpkinseed
From the 2002-06-17 survey
Radisson Lake is a 197-acre lake in Itasca County within the Big Fork River watershed. Radisson Lake is approximately 10 miles east of Bigfork, MN. The lake has a maximum depth of 40 ft and 73 acres less than 15 ft deep. A public access is located on the south shore. Water clarity was good with a Secchi disk reading…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Raddison Lake. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — RaddisonFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Raddison (0750)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — RaddisonPublic Water Access Sites · MN DNR LakeFinder
Lake Details
Max depth
40 ft
Surface area
204 acres
Shoreline
3.8 mi
Littoral zone
36%
Share shallower than 15 ft
Public access
Yes
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
4 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,401 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Raddison LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Stays near Raddison Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Raddison Lake
Water quality readings over time
2 seasons of samples on record (2024–2025). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving2 years
Nearby Lakes in Itasca County
Frequently asked questions about Raddison Lake
Where is Raddison Lake?
- Raddison Lake is a lake in Itasca County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Raddison Lake?
- Raddison Lake in Itasca County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 14.3 ft visibility. Maximum depth: 40 ft. Surface area: 203.56 acres.
Is Raddison Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Raddison Lake?
- Raddison Lake typically sits around 62°F at the surface in September, from 66 EPA Water Quality Portal field readings (2018–2025). That is a typical value for the month, not a live reading.
How deep is Raddison Lake?
- Raddison Lake has a maximum depth of 40 feet. The lake covers 203.56 acres.
What fish are in Raddison Lake?
- Fish species found in Raddison Lake include black crappie, bluegill, largemouth bass, northern pike, pumpkinseed, smallmouth bass, white sucker, yellow perch. Raddison Lake is located in Itasca County, Minnesota.
What did the DNR fisheries survey find at Raddison Lake?
- Minnesota DNR's Standard Survey on June 17, 2002 caught 14.17 northern pike per gill net at Raddison Lake. Length samples in the latest survey that recorded them ran 9–40 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Raddison Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Raddison Lake?
- Raddison Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Raddison Lake. Public access is listed as yes.
Can I fish at Raddison Lake?
- Raddison Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.
Explore Raddison Lake across LakeQuality
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Where this data comes from
11 measurements from 1 monitoring station, 2024–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA11 samples · 2024–2025
Analytical methods
- Field measurement/observation, generic method
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory