Port Monmouth 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 1,396 households in Port Monmouth, of which 31.1% had children under the age of 18 living in them. Of all households, 50.6% were married-couple households, 15.6% were households with a male householder and no spouse or partner present, and 25.6% were households with a female householder and no spouse or partner present. About 24.4% of all households were made up of individuals and 14.5% had someone living alone who was 65 years of age or older. Of the 1,289 households 38.9% had children under the age of 18 living with them, 57.7% were married couples living together, 12.3% had a female householder with no husband present, and 25.2% were non-families. 21.1% of households were one person and 11.0% were one person aged 65 or older. The average household size was 2.89 and the average family size was 3.39. 99% of the population in Port Monmouth. The age distribution was 27.4% under the age of 18, 8.5% from 18 to 24, 32.3% from 25 to 44, 21.4% from 45 to 64, and 10.5% 65 or older. The median age was 35 years. For every 100 females, there were 94.1 males. For every 100 females age 18 and over, there were 91.1 males. The median household income was $53,864 and the median family income was $63,375. Males had a median income of $45,565 versus $30,244 for females. The per capita income for the CDP was $21,369. About 8.6% of families and 10.5% of the population were below the
poverty line, including 15.3% of those under age 18 and 12.3% of those age 65 or over. ==Transportation==