Comfort Lake
Comfort Lake in Chisago County, Minnesota has a water quality grade of D (Nutrient-rich). Water clarity: 6 ft visibility. Phosphorus: 29.5 µg/L. Chlorophyll-a (algae): 15 µg/L. Maximum depth: 47 ft. Surface area: 217.82 acres.
- Clarity
- 6 ft
- Typical in August
- 62°F
- Max depth
- 47 ft
- Area
- 218 acres
- Type
- Eutrophic
- Trend
- ↓ Declining
- Public access
- Yes
- Ice-out
- Apr 14
- Open water
- 238 days
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Comfort Lake →
Next lake in Chisago County
Comfort Lake is a 218-acre productive, nutrient-rich eutrophic lake in Chisago County, Minnesota with a maximum depth of 47 feet (21-foot average). Water quality is graded D based on 2 sampling years through 2025. Overall water quality is declining over recent sampling years. The lake supports 15 documented fish species including black crappie, bluegill, and bowfin (dogfish). Public access is available with 1 public boat landing. Compared to the 29 other monitored lakes in Chisago County, Comfort Lake ranks #17 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-29. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyAlgae risk
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.
Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum
Water Quality Grade: D (Nutrient-rich)
Murky, only visible to about 6 ft. Phosphorus level: 29.5 µg/L. Chlorophyll-a: 15 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6 ft | Not graded |
| Phosphorus | 29.5 µg/L | Fair |
| Chlorophyll-a (Algae) | 15 µg/L | Poor |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Comfort Lake
Compare lakeside cabins, hotels, and vacation rentals near Comfort Lake in Chisago 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. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Comfort Lake are listed below.
Top-rated places to stay near Comfort Lake
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Planning a whole trip? See where to stay at Minnesota’s top lakes →
Water Temperature
Comfort Lake typically sits around 62°F at the surface in August. Summer average is about 62°F. Usually warmest in Jun (about 62°F) and coldest in May (about 50°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 281 field readings (2010–2025) via the EPA Water Quality Portal. See the full Comfort Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 47 ft |
| Average Depth | 21 ft |
| Surface Area | 218 acres |
| Shoreline Length | 3.2 mi |
| Littoral Zone | 41% |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Comfort LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Comfort 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.
DNR Fisheries Survey Summary
8 surveys on file from MN DNR Fisheries. Most recent: 2018-06-18 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 23.77 | 0.15 lb |
| Yellow Perch | 15.60 | 0.1 lb |
| Black Crappie | 11.67 | 0.2 lb |
| Largemouth Bass | 6.59 | 0.94 lb |
| Green Sunfish | 3.75 | 0.1 lb |
| Northern Pike | 3.57 | 2.81 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.
Bluegill
Yellow Perch
Black Crappie
Largemouth Bass
From the 2018-06-18 survey
Comfort Lake is a 219 acre, moderately fertile lake in lake class 24 located in southwestern Chisago County, east of the city of Wyoming. Land use in the watershed and along the lakeshore is predominantly residential and becoming more so. This fishery is managed primarily for Northern Pike. Long range management goals…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Comfort Lake. 4 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — ComfortFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Comfort (1936)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — ComfortFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — ComfortPublic Water Access Sites · MN DNR LakeFinder
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.123 m/yr | 6 |
| Phosphorus | ↓ Declining | +2.13 µg/L/yr | 2 |
| Chlorophyll-a | ↑ Improving | -0.75 µg/L/yr | 2 |
Ice Season
Historical ice data from Minnesota DNR (17 observations).
Estimated open water season: 238 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2016-03-16 (2016) | 2018-05-01 (2018) |
| Ice-In | 2007-11-18 (2007) | 2015-12-24 (2015) |
Most recent ice-out: 2023-04-15
EPA Impairment Status
Comfort Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN13-0053-00 · Official waterbody report
County Ranking
Ranked #17 of 30 lakes in Chisago County
Nearby Lakes With Higher Grades
Comfort Lake holds Grade D. 2 nearby lakes hold higher nutrient-and-algae grades — useful for a swim day, not a reason to skip lodging here.
See full comparison →Nearby Lakes in Chisago County
Frequently asked questions about Comfort Lake
What is the water quality grade for Comfort Lake?
- Comfort Lake in Chisago County, Minnesota has a water quality grade of D (Nutrient-rich). Water clarity: 6 ft visibility. Phosphorus: 29.5 µg/L. Chlorophyll-a (algae): 15 µg/L. Maximum depth: 47 ft. Surface area: 217.82 acres.
Is Comfort Lake safe to swim in?
- Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum. Comfort Lake has a water quality grade of D (Nutrient-rich). Algae concentration (chlorophyll-a) is 15 µg/L. Always check local health department advisories before swimming.
What is the water temperature of Comfort Lake?
- Comfort Lake typically sits around 62°F at the surface in August, from 281 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
How deep is Comfort Lake?
- Comfort Lake has a maximum depth of 47 feet and an average depth of 21 feet. The lake covers 217.82 acres.
What fish are in Comfort Lake?
- Fish species found in Comfort Lake include black crappie, bluegill, bowfin (dogfish), brown bullhead, common carp, hybrid sunfish, largemouth bass, muskellunge, northern pike, pumpkinseed, walleye, white crappie, white sucker, yellow bullhead, yellow perch. Comfort Lake is located in Chisago County, Minnesota.
When does Comfort Lake thaw?
- Comfort Lake typically has ice-out around Apr 14. Ice typically forms around Dec 8. The open water season is approximately 238 days.
Are there boat ramps on Comfort Lake?
- Comfort Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Comfort Lake. Public access is listed as yes.
Explore Comfort Lake across LakeGrade
Depth, room, public access, and the state wake-sport rules
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Fish species and best lakes in Chisago County
Species activity outlook by water temperature and season
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Where this data comes from
183 measurements from 3 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 Water
MNPCA183 samples · 2020–2025
Analytical methods
- Field measurement/observation, generic method
- Total Phosphorus After Block Digestion
- Phosphorus by Colorimetry
- Analysis of Chlorophyll in Periphyton and Plankton
Monitoring station identifiers (3)
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
Ice data from Minnesota DNR Climate