Hardwick, GA has a population of 3,356 and is the 8,254th largest city in the United States. The population density is 690 per sq mi which is 314% higher than the Georgia average and 662% higher than the national average. The median age in Hardwick is 39 which is approximately 7% higher than the Georgia average of 36. In Hardwick, 36% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 93% of Hardwick residents were born in Georgia, 7% were born out of state, 0% were born outside of the United States and 0% were foreign born.