Decatur is located in Otsego county New york with a geographic area of square miles. The total population in Decatur is 304 with 53.3% male and 46.7% female. Children under age 5 represent 3.0% of the population, under age 18 equal 15.1% of the population and over age 65 is 28.0% of the population. The median household income is $58,750, per capita income is $34,696. There are a total of 121 housing units with 88.4% owner occupied. Education includes 38.8% of residents that are high school graduates and 17.4% with a bachelor's degree or higher. The average temperature in Decatur in the summer is 70 degrees, and in the winter 27 degrees.