Corey Lake Southeastern Basin; Fabius Township is a 567-acre cold, clear oligotrophic lake in St. Joseph County, Michigan. Water quality is graded A based on 1 sampling years through 2022. Overall water quality is improving over recent sampling years. The lake supports 10 documented fish species including Blackchin shiner, Bluegill, and Golden shiner. Public access is available with 2 public boat landings. Compared to the 12 other monitored lakes in St. Joseph County, Corey Lake Southeastern Basin; Fabius Township ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2022-09-17. Grade methodology: LakeGrade methodology.
Watch Corey Lake Southeastern Basin; Fabius Township water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 16 ft down. Trophic State Index: 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 16 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 567 acres |
| Public Access | Yes |
Where to stay near Corey Lake Southeastern Basin; Fabius Township
Compare lakeside cabins, hotels, and vacation rentals near Corey Lake Southeastern Basin; Fabius Township in St. Joseph 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 Corey Lake Southeastern Basin; Fabius Township
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 Corey Lake Southeastern Basin; Fabius Township?
Get lake water-quality report cards plus the best cabin & lodging deals near Corey Lake Southeastern Basin; Fabius Township — straight to your inbox. No spam, unsubscribe anytime.
Planning a whole trip? See where to stay at Michigan’s top lakes →
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Corey Lake Southeastern Basin; Fabius Township
- → Corey Lake Southeastern Basin; Fabius Township fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Corey Lake Southeastern Basin; Fabius Township fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Corey Lake Southeastern Basin; Fabius Township? (mercury & PFAS guide)
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.22 m/yr | 3 |
Recreation & Access
Water Temperature
Corey Lake Southeastern Basin; Fabius Township averages about 57°F at the surface in summer, usually warmest in Aug (about 58°F) and coldest in Apr (about 45°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 1,597 field readings (2010–2019) via the EPA Water Quality Portal. See the full Corey Lake Southeastern Basin; Fabius Township water temperature breakdown →
Location
County Ranking
Ranked #2 of 13 lakes in St. Joseph County
Nearby Lakes in St. Joseph County
Explore Corey Lake Southeastern Basin; Fabius Township across LakeGrade
Fish species and top-graded lakes across Michigan
Fish species and best lakes in St. Joseph County
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its grade
Low nutrients, clear water, excellent for swimming
Michigan's cleanest and most-polluted lakes, ranked
More Michigan Lake Rankings
Other Grade A Lakes in Michigan
Cass County · Clarity: 13 ft
Van Buren County · Clarity: 13 ft
Cass County · Clarity: 16 ft
Van Buren County · Clarity: 17 ft
Van Buren County · Clarity: 15 ft
Allegan County · Clarity: 14 ft
Oligotrophic Lakes in Michigan
More records, surveys & data sources
Reservoir Info (USACE NID)
Corey Lake Southeastern Basin; Fabius Township is a man-made reservoir impounded by the Corey Lake Level Overflow Structure (completed 1974), built primarily for recreation on the Trib to Profile Lake Drain; gravity-type dam, 6 ft tall and 25 ft long.
- Surface area
- 567 ac
- Normal storage
- 215 ac-ft
- Max storage
- 430 ac-ft
- Drainage area
- 25.1 sq mi
- Hazard class
- Low
- Owner
- Corey Lake Association
Source: USACE National Inventory of Dams, NID ID MI02015 · Operator website · Matched by proximity (0.61 km)
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: 2022-09-17
Monitoring stations: 1