Kopperl is located in Bosque county Texas with a geographic area of 0.5 square miles. The total population in Kopperl is 74 with 39.2% male and 60.8% female. Children under age 5 represent 0.0% of the population, under age 18 equal 23.0% of the population and over age 65 is 36.5% of the population. The median household income is $66,389, per capita income is $34,411. There are a total of 40 housing units with 100.0% owner occupied. Education includes 67.5% of residents that are high school graduates and 10.0% with a bachelor's degree or higher. The average temperature in Kopperl in the summer is 83 degrees, and in the winter 49 degrees.