Perth amboy is located in Middlesex county New jersey with a geographic area of 4.7 square miles. The total population in Perth amboy is 51,589 with 49.5% male and 50.5% female. Children under age 5 represent 6.7% of the population, under age 18 equal 24.7% of the population and over age 65 is 11.8% of the population. The median household income is $54,188, per capita income is $22,836. There are a total of 16,527 housing units with 30.5% owner occupied. Education includes 31.8% of residents that are high school graduates and 16.9% with a bachelor's degree or higher. The average temperature in Perth amboy in the summer is 73 degrees, and in the winter 33 degrees.