Newington, GA has a population of 320 and is the 22,128th largest city in the United States. The population density is 395 per sq mi which is 137% higher than the Georgia average and 336% higher than the national average. The median age in Newington is 34 which is approximately 6% lower than the Georgia average of 36. In Newington, 63% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 84% of Newington residents were born in Georgia, 14% were born out of state, 2% were born outside of the United States and 0% were foreign born.