Greensburg is located in St. helena county Louisiana with a geographic area of 2.5 square miles. The total population in Greensburg is 1,018 with 51.3% male and 48.7% female. Children under age 5 represent 14.6% of the population, under age 18 equal 23.2% of the population and over age 65 is 10.3% of the population. The median household income is $38,967, per capita income is $23,055. There are a total of 357 housing units with 35.6% owner occupied. Education includes 26.3% of residents that are high school graduates and 14.0% with a bachelor's degree or higher. The average temperature in Greensburg in the summer is 81 degrees, and in the winter 51 degrees.