Wilder is located in Canyon county Idaho with a geographic area of 0.7 square miles. The total population in Wilder is 1,740 with 48.3% male and 51.7% female. Children under age 5 represent 7.0% of the population, under age 18 equal 30.7% of the population and over age 65 is 9.9% of the population. The median household income is $39,337, per capita income is $15,915. There are a total of 556 housing units with 49.1% owner occupied. Education includes 26.3% of residents that are high school graduates and 8.1% with a bachelor's degree or higher. The average temperature in Wilder in the summer is 71 degrees, and in the winter 24 degrees.