Mullica Hill first appeared as a
census designated place in the
1980 U.S. census. 94.9% of residents lived in urban areas, while 5.1% lived in rural areas. There were 1,795 households in Mullica Hill, of which 37.2% had children under the age of 18 living in them. Of all households, 56.1% were married-couple households, 10.5% were households with a male householder and no spouse or partner present, and 28.6% were households with a female householder and no spouse or partner present. About 20.3% of all households were made up of individuals and 13.1% had someone living alone who was 65 years of age or older. There were 697 households, out of which 34.6% had children under the age of 18 living with them, 45.8% were
married couples living together, 13.2% had a female householder with no husband present, and 37.9% were non-families. 33.9% of all households were made up of individuals, and 11.5% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 3.09. The population was spread out, with 28.3% under the age of 18, 6.1% from 18 to 24, 33.7% from 25 to 44, 20.9% from 45 to 64, and 11.0% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 82.4 males. For every 100 females age 18 and over, there were 73.3 males. The median income for a household in the CDP was $38,628, and the median income for a family was $62,321. Males had a median income of $48,295 versus $35,250 for females. The
per capita income for the CDP was $22,503. About 6.4% of families and 8.1% of the population were below the
poverty line, including 5.4% of those under age 18 and 20.7% of those age 65 or over. ==Historic district==