Greenwood is located in Oxford county Maine with a geographic area of square miles. The total population in Greenwood is 683 with 51.0% male and 49.0% female. Children under age 5 represent 3.1% of the population, under age 18 equal 11.6% of the population and over age 65 is 29.4% of the population. The median household income is $47,708, per capita income is $31,302. There are a total of 316 housing units with 75.6% owner occupied. Education includes 16.5% of residents that are high school graduates and 31.6% with a bachelor's degree or higher. The average temperature in Greenwood in the summer is 68 degrees, and in the winter 25 degrees.