The population density was 535.5 people per square mile (206.8/km²). There were 8,506 housing units at an average density of 198.7 per square mile (76.7/km²). The racial makeup of the township was 88.86% White, 2.46% African American, 0.10% Native American, 5.65% Asian, 0.02% Pacific Islander, 1.60% from other races, and 1.31% from two or more races. Hispanic or Latino of any race were 6.28% of the population. There were 8,108 households out of which 40.2% had children under the age of 18 living with them, 68.5% were married couples living together, 7.6% had a female householder with no husband present, and 21.3% were non-families. 17.0% of all households were made up of individuals and 5.6% had someone living alone who was 65 years of age or older. The average household size was 2.82 and the average family size was 3.21. In the township the population was spread out with 27.1% under the age of 18, 5.5% from 18 to 24, 32.9% from 25 to 44, 25.1% from 45 to 64, and 9.4% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 97.7 males. For every 100 females age 18 and over, there were 94.5 males. The median income for a household in the township was $80,939, and the median income for a family was $89,281. Males had a median income of $58,027 versus $40,038 for females. The per capita income for the township was $33,184. About 1.4% of families and 2.4% of the population were below the poverty line, including 2.6% of those under age 18 and 3.6% of those age 65 or over. Rockaway Townsquare Mall is a super-regional mall anchored by Macy's, Lord & Taylor, J. C. Penney, & Sears with a gross leasable area of , placing it in the top ten among the largest shopping malls in New Jersey. Picatinny Arsenal, a military research and manufacturing facility, dates back to 1880 when it was established as the Dover Powder Depot, before being renamed just days later as the Picatinny Powder Depot.