Roselle is located in Union county New jersey with a geographic area of 2.6 square miles. The total population in Roselle is 21,699 with 46.9% male and 53.1% female. Children under age 5 represent 5.0% of the population, under age 18 equal 21.7% of the population and over age 65 is 14.9% of the population. The median household income is $65,307, per capita income is $29,721. There are a total of 7,445 housing units with 58.0% owner occupied. Education includes 30.8% of residents that are high school graduates and 24.7% with a bachelor's degree or higher. The average temperature in Roselle in the summer is 73 degrees, and in the winter 34 degrees.
