Rockville is located in Washington county Utah with a geographic area of 8.5 square miles. The total population in Rockville is 207 with 47.3% male and 52.7% female. Children under age 5 represent 1.9% of the population, under age 18 equal 8.2% of the population and over age 65 is 51.7% of the population. The median household income is $38,281, per capita income is $29,287. There are a total of 120 housing units with 82.5% owner occupied. Education includes 20.8% of residents that are high school graduates and 31.7% with a bachelor's degree or higher. The average temperature in Rockville in the summer is 70 degrees, and in the winter 30 degrees.