Cerulean is located in Trigg county Kentucky with a geographic area of 2.6 square miles. The total population in Cerulean is 490 with 50.6% male and 49.4% female. Children under age 5 represent 4.7% of the population, under age 18 equal 18.4% of the population and over age 65 is 21.2% of the population. The median household income is $45,655, per capita income is $17,817. There are a total of 225 housing units with 76.0% owner occupied. Education includes 25.3% of residents that are high school graduates and 13.3% with a bachelor's degree or higher. The average temperature in Cerulean in the summer is 76 degrees, and in the winter 36 degrees.