Zyistra Lake
San Juan County, Washington50 acresView mapDirections
No nutrient or algae sampling on record from Washington Ecology for this lake.
Zyistra Lake in San Juan County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 50 acres.
Zyistra Lake is a 50-acre lake in San Juan County, Washington.
Source: EPA Water Quality Portal sampling records, WA Ecology. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Zyistra Lake is safe to swim in today is a call for the Washington State Department of Ecology and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Zyistra Lake
These are the measurements Washington Ecology publishes for Zyistra Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Zyistra Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
50 acres
No bathymetric survey has been published for Zyistra Lake, so its depth is not documented here.
Stays via Stay22
Stays near Zyistra Lake
Compare lakeside cabins, hotels, and vacation rentals near Zyistra Lake in San Juan County, Washington — 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 Zyistra Lake
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 whole trip? See where to stay at Washington’s top lakes →
Follow Zyistra Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Zyistra Lake
Nearby Lakes in San Juan County
Frequently asked questions about Zyistra Lake
Where is Zyistra Lake?
- Zyistra Lake is a lake in San Juan County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.
What is the water quality of Zyistra Lake?
- Zyistra Lake in San Juan County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 50 acres.
Is Zyistra Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Zyistra Lake across LakeQuality
More lakes in Washington
Other Lakes in Washington
Where this data comes from
Measurements for Zyistra Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.