
Seneca Lake
Seneca Lake is a lake of some 42,749 acres on the Seneca River, in New York. It lies in Seneca County. New York Department of…
State
This guide covers 33 lakes and reservoirs across New York. 14 of them are reservoirs held back by a dam and 19 are natural lakes. The largest is Oneida Lake at about 51,151 acres. The deepest water on record here is at Seneca Lake, about 617 feet. Rivers that feed or drain them include the Seneca River, the Canacadea Creek and the Esopus Creek. A public agency publishes a live water level for 17 of them, which is what the level pages show. The agency behind the most lakes here is NYC DEP. Across the state we map 3 named swimming spots and access points from federal and state sources.
Click a marker to open the lake page.
Each page has the live water level, weather, access points and sources.

Seneca Lake is a lake of some 42,749 acres on the Seneca River, in New York. It lies in Seneca County. New York Department of…

Great Sacandaga Lake is a 20,650-acre reservoir on the Sacandaga River in New York. The lake is in Fulton County. Hudson…

Skaneateles Lake covers about 8,800 acres of the Skaneateles Creek in New York. Its shoreline falls inside Onondaga County. It is…

Fed by the Seneca River, Cayuga Lake holds roughly 42,502 acres of water in New York. Its shoreline falls inside Cayuga County.…

Keuka Lake covers about 11,738 acres of the Keuka Lake Outlet in New York. You will find it in Steuben County. NYSDEC / Keuka…

Canandaigua Lake is a 10,626-acre lake on the Canandaigua Outlet in New York. It lies in Ontario County. It is managed by NY DEC…

Oneida Lake is a 51,151-acre lake on the Oneida River in New York. Its shoreline falls inside Oswego County. NY State Canal…

Fed by the Chadakoin River, Chautauqua Lake holds roughly 13,097 acres of water in New York. The lake is in Chautauqua County. It…

Fed by the Fish Creek, Saratoga Lake holds roughly 3,762 acres of water in New York. The lake is in Saratoga County. NYSDEC / NY…

Schroon Lake covers about 4,257 acres of the Schroon River in New York. Its shoreline falls inside Warren County. New York State…

Fed by the Owasco River, Owasco Lake holds roughly 6,784 acres of water in New York. It lies in Cayuga County. NY DEC manages it.…

Conesus Lake is a lake of some 3,410 acres on the Conesus Creek, in New York. You will find it in Livingston County. It is…

Ashokan Reservoir is a 8,300-acre reservoir on the Esopus Creek in New York. You will find it in Ulster County. It is managed by…

Delta Lake is a reservoir of some 2,377 acres on the Mohawk River, in New York. Its shoreline falls inside Oneida County.…

Lake Placid is a 984-acre lake in New York. The lake is in Essex County. Management is in the hands of NYSDEC / Essex County.
2 lakes in New York have a documented full pool, so their pages show how far the water sits below the level the reservoir was designed to hold. Readings are refreshed from the operating agency and stamped with the time they were taken. A falling pool widens the beaches and shortens the ramps.
| Lake | Level | Full pool | How full |
|---|---|---|---|
| Seneca Lake | — | — | no percent published |
| Great Sacandaga Lake | 760.26 ft | — | no percent published |
| Skaneateles Lake | — | — | no percent published |
| Cayuga Lake | 382.68 ft | — | no percent published |
| Keuka Lake | — | — | no percent published |
| Canandaigua Lake | — | — | no percent published |
| Oneida Lake | — | — | no percent published |
| Chautauqua Lake | 1,308.24 ft | — | no percent published |
| Saratoga Lake | 203.30 ft | — | no percent published |
| Schroon Lake | — | — | no percent published |
| Owasco Lake | 712.64 ft | — | no percent published |
| Conesus Lake | 818.38 ft | — | no percent published |
| Ashokan Reservoir | — | — | no percent published |
| Delta Lake | — | — | no percent published |
| Lake Placid | — | — | no percent published |
Lakes and swimming spots near the main towns.