Hinesville, GA has a population of 34,127 and is the 1,240th largest city in the United States. The population density is 1,885 per sq mi which is 1029% higher than the Georgia average and 1980% higher than the national average. The median age in Hinesville is 28 which is approximately 24% lower than the Georgia average of 36. In Hinesville, 55% of the population over 15 years of age are married, 86% speak English and 9% speak Spanish. 35% of Hinesville residents were born in Georgia, 51% were born out of state, 8% were born outside of the United States and 7% were foreign born.