Twin City, GA has a population of 2,205 and is the 10,476th largest city in the United States. The population density is 617 per sq mi which is 270% higher than the Georgia average and 581% higher than the national average. The median age in Twin City is 34 which is approximately 7% lower than the Georgia average of 36. In Twin City, 37% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 86% of Twin City residents were born in Georgia, 14% were born out of state, 0% were born outside of the United States and 1% were foreign born.