Is Mackay Reservoir Safe for Swimming?
Mackay Reservoir in Custer County, Idaho has limited nutrient and algae sampling on record. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Location | Custer County, Idaho |
How does Mackay Reservoir compare?
Mackay Reservoir does not have enough recent summer sampling to compare with the Idaho state average.
Stays via Stay22
Where to stay near Mackay Reservoir
Compare cabins, hotels, and vacation rentals near Mackay Reservoir in Custer County, Idaho. Live availability and prices for your nights. Switch the map to Satellite to see how close each stay is to the water.
Top-rated places to stay near Mackay Reservoir
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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 Mackay Reservoir?
Get lake water-quality updates plus the best cabin & lodging deals near Mackay Reservoir — straight to your inbox. No spam, unsubscribe anytime.
Watch Mackay Reservoir water quality
Get an email when the clarity or algae readings change. Unsubscribe anytime.