North Valley Stream is a hamlet and census-designated place (CDP) in the Town of Hempstead in Nassau County, on Long Island, in New York, United States.

The project required roughly 213 North Valley Stream area homes located along the path to be moved or demolished.

[3] According to the United States Census Bureau, the CDP has a total area of 1.9 square miles (4.9 km2), all land.

16.1% of all households were made up of individuals, and 8.5% had someone living alone who was 65 years of age or older.

North Valley Stream is located within the boundaries of (and is thus served by) the Valley Stream Central High School District and the Sewanhaka Central High School District, in different parts.

[8] The Southern State Parkway travels through and serves North Valley Stream.

[7] The hamlet is served by the n1, n2, n3, n8, and n25 bus routes – all of which are operated by Nassau Inter-County Express (NICE).