Unionville is located in Orange county New york with a geographic area of 0.3 square miles. The total population in Unionville is 544 with 38.6% male and 61.4% female. Children under age 5 represent 11.9% of the population, under age 18 equal 22.4% of the population and over age 65 is 21.3% of the population. The median household income is $72,857, per capita income is $37,569. There are a total of 198 housing units with 65.2% owner occupied. Education includes 37.9% of residents that are high school graduates and 29.3% with a bachelor's degree or higher. The average temperature in Unionville in the summer is 70 degrees, and in the winter 27 degrees.