Sumner, GA has a population of 428 and is the 20,492nd largest city in the United States. The population density is 242 per sq mi which is 45% higher than the Georgia average and 167% higher than the national average. The median age in Sumner is 40 which is approximately 10% higher than the Georgia average of 36. In Sumner, 53% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 77% of Sumner residents were born in Georgia, 23% were born out of state, 0% were born outside of the United States and 0% were foreign born.