Glennville, GA has a population of 5,137 and is the 6,345th largest city in the United States. The population density is 727 per sq mi which is 335% higher than the Georgia average and 702% higher than the national average. The median age in Glennville is 35 which is approximately 4% lower than the Georgia average of 36. In Glennville, 44% of the population over 15 years of age are married, 92% speak English and 7% speak Spanish. 65% of Glennville residents were born in Georgia, 29% were born out of state, 3% were born outside of the United States and 3% were foreign born.