Unadilla, GA has a population of 3,670 and is the 7,828th largest city in the United States. The population density is 607 per sq mi which is 264% higher than the Georgia average and 570% higher than the national average. The median age in Unadilla is 36 which is approximately 1% lower than the Georgia average of 36. In Unadilla, 38% of the population over 15 years of age are married, 88% speak English and 11% speak Spanish. 76% of Unadilla residents were born in Georgia, 17% were born out of state, 0% were born outside of the United States and 7% were foreign born.