River hills is located in Milwaukee county Wisconsin with a geographic area of 5.2 square miles. The total population in River hills is 1,441 with 49.2% male and 50.8% female. Children under age 5 represent 4.9% of the population, under age 18 equal 23.2% of the population and over age 65 is 25.9% of the population. The median household income is $150,682, per capita income is $97,616. There are a total of 542 housing units with 98.3% owner occupied. Education includes 2.6% of residents that are high school graduates and 80.8% with a bachelor's degree or higher. The average temperature in River hills in the summer is 66 degrees, and in the winter 17 degrees.