Navesink appeared as an unincorporated community in the
1950 U.S. census. 100.0% of residents lived in urban areas, while 0.0% lived in rural areas. There were 712 households, of which 35.1% had children under the age of 18 living in them. Of all households, 64.0% were married-couple households, 12.9% were households with a male householder and no spouse or partner present, and 18.5% were households with a female householder and no spouse or partner present. About 19.2% of all households were made up of individuals, and 9.9% had someone living alone who was 65 years of age or older. There were 623 households, out of which 39.5% had children under the age of 18 living with them, 64.4% were
married couples living together, 12.0% had a female householder with no husband present, and 20.1% were non-families. 14.8% of all households were made up of individuals, and 5.1% had someone living alone who was 65 years of age or older. The average household size was 2.93 and the average family size was 3.26. The population was spread out, with 26.2% under the age of 18, 4.9% from 18 to 24, 29.2% from 25 to 44, 25.2% from 45 to 64, and 14.5% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 94.4 males. For every 100 females age 18 and over, there were 87.6 males. The median income for a household in the CDP was $81,456, and the median income for a family was $86,865. Males had a median income of $56,786 versus $40,833 for females. The
per capita income for the CDP was $27,673. None of the families and 1.6% of the population were living below the
poverty line, including no under eighteens and 8.5% of those over 64. ==Historic district==