West Belmar is an unincorporated community and census-designated place (CDP) within Wall Township, in Monmouth County, in the U.S. state of New Jersey. As of the 2020 census, the CDP's population was 2,459. 1960 1970<br> 1980 1990 2000<br> 2010 2020
| align = right
| align-fn = center
West Belmar first 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 1,001 households in West Belmar, of which 23.9% had children under the age of 18 living in them. Of all households, 46.6% were married-couple households, 20.1% were households with a male householder and no spouse or partner present, and 24.4% were households with a female householder and no spouse or partner present. About 29.6% of all households were made up of individuals and 9.5% had someone living alone who was 65 years of age or older.
Of the 984 households, 28.3% had children under the age of 18; 46.2% were married couples living together; 14.5% had a female householder with no husband present and 34.3% were non-families. Of all households, 27.0% were made up of individuals and 9.2% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.09.
Of the 1,000 households 34.1% had children under the age of 18 living with them, 50.5% were married couples living together, 12.2% had a female householder with no husband present, and 32.7% were non-families. 27.7% of households were one person and 9.7% were one person aged 65 or older. The average household size was 2.61 and the average family size was 3.21.
