East Norwich (formerly known as Norwich) is a hamlet and census-designated place (CDP) located within the Town of Oyster Bay in Nassau County, on the North Shore of Long Island, in New York, United States.

[2] According to the United States Census Bureau, the CDP has a total area of 1.0 square mile (2.6 km2), all land.

[4][5] This moraine was formed by glaciers during the Wisconsin Glacial Episode, and is named for Harbor Hill in Roslyn; Harbor Hill is the highest geographic point in Nassau County.

[6][7] As such, summers are usually hot and humid with occasional thunderstorms, winters are usually cool with snow and rain, and the spring and fall typically feature mild weather.

15.1% of all households were made up of individuals, and 7.8% had someone living alone who was 65 years of age or older.

[11] No rail lines or train stations exist within East Norwich.

[13][14] PSEG Long Island provides power to all homes and businesses within East Norwich.