Trafalgar is located in Johnson county Indiana with a geographic area of 2.6 square miles. The total population in Trafalgar is 1,244 with 58.0% male and 42.0% female. Children under age 5 represent 5.7% of the population, under age 18 equal 26.8% of the population and over age 65 is 6.4% of the population. The median household income is $71,688, per capita income is $27,207. There are a total of 475 housing units with 76.4% owner occupied. Education includes 33.9% of residents that are high school graduates and 25.5% with a bachelor's degree or higher. The average temperature in Trafalgar in the summer is 73 degrees, and in the winter 29 degrees.