Government offices for the Town of Williamson are located in the hamlet.

Williamson hosts the annual Apple Blossom Festival in the hamlet each May.

[5] According to the United States Census Bureau, the CDP has a total area of 3.8 square miles (9.8 km2), all land.

The primary intersection in the hamlet is at N.Y. Route 21, also known as Lake Avenue, and Ridge Road (CR 103).

35.1% of all households were made up of individuals, and 16.6% had someone living alone who was 65 years of age or older.

There were 1,187 housing units at an average density of 312.4 per square mile (120.6/km2).