Rochester is located in Strafford county New hampshire with a geographic area of 45.0 square miles. The total population in Rochester is 31,305 with 50.5% male and 49.5% female. Children under age 5 represent 3.4% of the population, under age 18 equal 20.6% of the population and over age 65 is 18.7% of the population. The median household income is $66,831, per capita income is $34,457. There are a total of 13,151 housing units with 67.1% owner occupied. Education includes 35.1% of residents that are high school graduates and 22.6% with a bachelor's degree or higher. The average temperature in Rochester in the summer is 68 degrees, and in the winter 23 degrees.
