Rosanky is located in Bastrop county Texas with a geographic area of 20.4 square miles. The total population in Rosanky is 1,225 with 41.1% male and 58.9% female. Children under age 5 represent 5.9% of the population, under age 18 equal 14.5% of the population and over age 65 is 19.8% of the population. The median household income is $89,545, per capita income is $48,913. There are a total of 514 housing units with 100.0% owner occupied. Education includes 22.2% of residents that are high school graduates and 23.5% with a bachelor's degree or higher. The average temperature in Rosanky in the summer is 83 degrees, and in the winter 49 degrees.