The Hercules Powder Co. in Kenvil has had explosions in 1934, killing 6 people; in 1940, killing 51 people; and in 1989, shattering windows across town.
U.S. Route 46 and Route 10 pass through the area. The Morristown and Erie Railway runs rail freight service through the area 2-5 times per week on its High Bridge Branch.
According to the US Census Bureau, the CDP has a total area of 17.6 km² (6.8 mi²). 17.3 km² (6.7 mi²) of it is land and 0.3 km² (0.1 mi²) of it (1.77%) is water.
There were 4,138 households out of which 43.6% had children under the age of 18 living with them, 74.5% were married couples living together, 6.9% had a female householder with no husband present, and 16.0% were non-families. 13.3% of all households were made up of individuals and 5.4% had someone living alone who was 65 years of age or older. The average household size was 3.02 and the average family size was 3.33.
In the CDP the population was spread out with 28.4% under the age of 18, 5.8% from 18 to 24, 30.1% from 25 to 44, 26.0% from 45 to 64, and 9.6% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 97.9 males. For every 100 females age 18 and over, there were 93.4 males.
The median income for a household in the CDP was $83,614, and the median income for a family was $90,015. Males had a median income of $64,188 versus $37,841 for females. The per capita income for the CDP was $31,923. About 1.9% of families and 2.4% of the population were below the poverty line, including 2.4% of those under age 18 and 1.9% of those age 65 or over.