Fonda is located in Montgomery county New york with a geographic area of 0.5 square miles. The total population in Fonda is 724 with 50.7% male and 49.3% female. Children under age 5 represent 8.8% of the population, under age 18 equal 27.9% of the population and over age 65 is 10.1% of the population. The median household income is $51,667, per capita income is $25,761. There are a total of 274 housing units with 68.6% owner occupied. Education includes 30.3% of residents that are high school graduates and 16.1% with a bachelor's degree or higher. The average temperature in Fonda in the summer is 70 degrees, and in the winter 27 degrees.