Belle mead is located in Somerset county New jersey with a geographic area of 4.0 square miles. The total population in Belle mead is 5,492 with 50.8% male and 49.2% female. Children under age 5 represent 4.9% of the population, under age 18 equal 32.8% of the population and over age 65 is 4.4% of the population. The median household income is $162,012, per capita income is $56,841. There are a total of 1,698 housing units with 61.1% owner occupied. Education includes 4.2% of residents that are high school graduates and 73.3% with a bachelor's degree or higher. The average temperature in Belle mead in the summer is 73 degrees, and in the winter 34 degrees.