Martinez is located in Columbia county Georgia with a geographic area of 14.5 square miles. The total population in Martinez is 34,912 with 46.1% male and 53.9% female. Children under age 5 represent 6.2% of the population, under age 18 equal 24.6% of the population and over age 65 is 15.6% of the population. The median household income is $76,201, per capita income is $37,549. There are a total of 11,935 housing units with 74.5% owner occupied. Education includes 21.3% of residents that are high school graduates and 39.7% with a bachelor's degree or higher. The average temperature in Martinez in the summer is 76 degrees, and in the winter 42 degrees.
