North Merrick is a hamlet and census-designated place in the Town of Hempstead, in Nassau County, near the South Shore of Long Island, in New York, United States.

[3] As of the census[5] of 2020, there were 12,238 people, 4,110 households, and 3,386 families residing in the CDP.

[7][8] Additionally, the Meadowbrook State Parkway forms large portions of North Merrick's western border, with Roosevelt and Uniondale.

[8] The closest airports include: North Merrick is protected by a volunteer fire department that is responsible for one of the smallest fire districts in Nassau County covering 2.1 square miles (5.4 km2).

[8] The North Merrick Fire Department has approximately 85 members using 16 pieces of apparatus located at one station.