Smiths grove is located in Warren county Kentucky with a geographic area of 0.8 square miles. The total population in Smiths grove is 683 with 60.0% male and 40.0% female. Children under age 5 represent 2.2% of the population, under age 18 equal 14.8% of the population and over age 65 is 27.7% of the population. The median household income is $54,063, per capita income is $26,347. There are a total of 310 housing units with 86.5% owner occupied. Education includes 47.4% of residents that are high school graduates and 16.8% with a bachelor's degree or higher. The average temperature in Smiths grove in the summer is 76 degrees, and in the winter 36 degrees.