Dexter is located in Penobscot county Maine with a geographic area of 4.7 square miles. The total population in Dexter is 1,981 with 44.3% male and 55.7% female. Children under age 5 represent 1.3% of the population, under age 18 equal 15.3% of the population and over age 65 is 29.4% of the population. The median household income is $39,688, per capita income is $25,488. There are a total of 918 housing units with 59.9% owner occupied. Education includes 57.3% of residents that are high school graduates and 14.8% with a bachelor's degree or higher. The average temperature in Dexter in the summer is 68 degrees, and in the winter 25 degrees.