Detroit Lake is a mesotrophic lake in Marion County, Oregon. Water quality is graded B based on 1 sampling years through 2023.
Source: EPA Water Quality Portal sampling records, Oregon DNR, last sampled 2023-08-15. Grade methodology: LakeGrade methodology.
Watch Detroit Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
No clarity data. Phosphorus level: 20 µg/L. Trophic State Index: 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 20 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Detroit Lake
Compare lakeside cabins, hotels, and vacation rentals near Detroit Lake in Marion County, Oregon — 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 Detroit 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 Detroit Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Detroit Lake — straight to your inbox. No spam, unsubscribe anytime.
Fishing Detroit Lake
Location
County Ranking
Ranked #1 of 1 lakes in Marion County
Nearby Lakes in Marion County
Explore Detroit Lake across LakeGrade
More Oregon Lake Rankings
Other Grade B Lakes in Oregon
Jefferson County · Good
Jefferson County · Clarity: 8.4 ft
Jefferson County · Clarity: 4.6 ft
Jefferson County · Clarity: 4.4 ft
Deschutes County · Clarity: 8.4 ft
Deschutes County · Clarity: 12.5 ft
Mesotrophic Lakes in Oregon
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-08-15
Monitoring stations: 3