Horse Island Light

Horse Island Light is a lighthouse in Jefferson County, New York. New York has 84 lighthouses on record at Wayfarrow, 8 of them in Jefferson County.

It was built in 1870, in the late 19th century, making it the 23rd oldest of the 56 in New York with a recorded construction date; its light sits 57 feet above the water; the light characteristic is recorded as Fl W 2.5s (a white flash every 2.5 seconds), with a range of about 4.3 nautical miles; it guards Black River Bay; the structure is built of steel.

Status check, 2026-11: The current brick tower and attached house date from 1870 (1957 is the year a metal skeleton tower took over the light, not the build year). Reported heights disagree: 55.5 ft, 69 ft, or 70 ft. New York State Parks bought the island in 2019 and is restoring the lighthouse. It stands at 43.9437° N, 76.1453° W.

Key facts

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