Rotterdam is located in Schenectady county New york with a geographic area of 8.2 square miles. The total population in Rotterdam is 21,939 with 48.1% male and 51.9% female. Children under age 5 represent 6.4% of the population, under age 18 equal 20.4% of the population and over age 65 is 17.2% of the population. The median household income is $69,276, per capita income is $31,895. There are a total of 8,414 housing units with 76.7% owner occupied. Education includes 30.3% of residents that are high school graduates and 26.7% with a bachelor's degree or higher. The average temperature in Rotterdam in the summer is 70 degrees, and in the winter 27 degrees.
