Avoca is located in Cass county Nebraska with a geographic area of 0.1 square miles. The total population in Avoca is 225 with 47.1% male and 52.9% female. Children under age 5 represent 8.9% of the population, under age 18 equal 21.8% of the population and over age 65 is 19.6% of the population. The median household income is $62,250, per capita income is $27,544. There are a total of 77 housing units with 76.6% owner occupied. Education includes 36.4% of residents that are high school graduates and 2.6% with a bachelor's degree or higher. The average temperature in Avoca in the summer is 72 degrees, and in the winter 26 degrees.