Clarkesville, GA has a population of 1,796 and is the 11,662nd largest city in the United States. The population density is 731 per sq mi which is 338% higher than the Georgia average and 707% higher than the national average. The median age in Clarkesville is 39 which is approximately 6% higher than the Georgia average of 36. In Clarkesville, 56% of the population over 15 years of age are married, 91% speak English and 7% speak Spanish. 64% of Clarkesville residents were born in Georgia, 30% were born out of state, 0% were born outside of the United States and 6% were foreign born.