Celina is located in Clay county Tennessee with a geographic area of 1.8 square miles. The total population in Celina is 1,995 with 46.4% male and 53.6% female. Children under age 5 represent 9.9% of the population, under age 18 equal 23.9% of the population and over age 65 is 24.3% of the population. The median household income is $33,191, per capita income is $17,326. There are a total of 791 housing units with 54.7% owner occupied. Education includes 39.2% of residents that are high school graduates and 13.7% with a bachelor's degree or higher. The average temperature in Celina in the summer is 75 degrees, and in the winter 38 degrees.