Port wentworth is located in Chatham county Georgia with a geographic area of 16.1 square miles. The total population in Port wentworth is 8,886 with 52.2% male and 47.8% female. Children under age 5 represent 9.8% of the population, under age 18 equal 29.3% of the population and over age 65 is 10.9% of the population. The median household income is $74,018, per capita income is $34,574. There are a total of 3,576 housing units with 66.8% owner occupied. Education includes 28.3% of residents that are high school graduates and 36.0% with a bachelor's degree or higher. The average temperature in Port wentworth in the summer is 76 degrees, and in the winter 42 degrees.