Swan Lake is a mesotrophic lake in Iron County, Michigan. Water quality is graded C based on 1 sampling years through 2022. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings. Compared to the 38 other monitored lakes in Iron County, Swan Lake ranks #32 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2022-09-05. Grade methodology: LakeGrade methodology.
Watch Swan Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 9 ft. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Swan Lake
Compare lakeside cabins, hotels, and vacation rentals near Swan Lake in Iron County, Michigan — 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.
Top-rated places to stay near Swan Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Swan Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Swan Lake — straight to your inbox. No spam, unsubscribe anytime.
Planning a whole trip? See where to stay at Michigan’s top lakes →
Fishing Swan Lake
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +2.325 m/yr | 3 |
| Chlorophyll-a | ↑ Improving | -0.25 µg/L/yr | 3 |
Recreation & Access
Location & Depth Map
Free interactive depth-contour map of Swan Lake, reaching a maximum surveyed depth of 20 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
County Ranking
Ranked #32 of 39 lakes in Iron County
Nearby Lakes in Iron County
Explore Swan Lake across LakeGrade
Fish species and top-graded lakes across Michigan
Fish species and best lakes in Iron County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Upper Peninsula area
Where to stay at Michigan's top lakes, each with its grade
Moderate nutrients, good water quality
Michigan's cleanest and most-polluted lakes, ranked
More Michigan Lake Rankings
Other Grade C Lakes in Michigan
Gogebic County · Clarity: 9.5 ft
Gogebic County · Clarity: 7.9 ft
Marquette County · Clarity: 9 ft
Gogebic County · Clarity: 9.3 ft
Gogebic County · Clarity: 7.3 ft
Gogebic County · Clarity: 7 ft
Mesotrophic Lakes in Michigan
More records, surveys & data sources
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2022-09-05
Monitoring stations: 1