Tamaroa is located in Perry county Illinois with a geographic area of 1.0 square miles. The total population in Tamaroa is 740 with 53.2% male and 46.8% female. Children under age 5 represent 7.2% of the population, under age 18 equal 25.3% of the population and over age 65 is 11.6% of the population. The median household income is $43,125, per capita income is $22,924. There are a total of 294 housing units with 75.2% owner occupied. Education includes 35.0% of residents that are high school graduates and 4.1% with a bachelor's degree or higher. The average temperature in Tamaroa in the summer is 74 degrees, and in the winter 27 degrees.