Llewellyn Park is a historic gated community and census-designated place (CDP) located within West Orange in Essex County, in the U.S. state of New Jersey. Llewellyn Park is thought to be the country's first planned residential community, and the site of the first large-scale naturalization of crocus, narcissus, and jonquils. The community features 175 homes on 425 acres (172 ha) and is located 12 miles (19 km) west of New York City.