Pembroke is located in Merrimack county New hampshire with a geographic area of square miles. The total population in Pembroke is 7,224 with 49.8% male and 50.2% female. Children under age 5 represent 5.3% of the population, under age 18 equal 22.3% of the population and over age 65 is 13.3% of the population. The median household income is $89,000, per capita income is $36,603. There are a total of 2,696 housing units with 74.6% owner occupied. Education includes 27.4% of residents that are high school graduates and 36.2% with a bachelor's degree or higher. The average temperature in Pembroke in the summer is 68 degrees, and in the winter 23 degrees.