Glenville is located in Schenectady county New york with a geographic area of square miles. The total population in Glenville is 29,250 with 47.7% male and 52.3% female. Children under age 5 represent 4.9% of the population, under age 18 equal 22.8% of the population and over age 65 is 22.2% of the population. The median household income is $80,112, per capita income is $37,436. There are a total of 10,897 housing units with 74.5% owner occupied. Education includes 24.0% of residents that are high school graduates and 44.1% with a bachelor's degree or higher. The average temperature in Glenville in the summer is 70 degrees, and in the winter 27 degrees.