Fonda is located in Pocahontas county Iowa with a geographic area of 1.0 square miles. The total population in Fonda is 542 with 45.0% male and 55.0% female. Children under age 5 represent 2.4% of the population, under age 18 equal 23.2% of the population and over age 65 is 17.0% of the population. The median household income is $60,347, per capita income is $25,987. There are a total of 235 housing units with 74.5% owner occupied. Education includes 31.9% of residents that are high school graduates and 11.9% with a bachelor's degree or higher. The average temperature in Fonda in the summer is 71 degrees, and in the winter 23 degrees.