Hannahs Mill, GA has a population of 3,822 and is the 7,651st largest city in the United States. The population density is 883 per sq mi which is 429% higher than the Georgia average and 875% higher than the national average. The median age in Hannahs Mill is 36 which is approximately 1% lower than the Georgia average of 36. In Hannahs Mill, 56% of the population over 15 years of age are married, 91% speak English and 6% speak Spanish. 83% of Hannahs Mill residents were born in Georgia, 10% were born out of state, 2% were born outside of the United States and 4% were foreign born.