Chickamauga, GA has a population of 3,122 and is the 8,604th largest city in the United States. The population density is 1,216 per sq mi which is 628% higher than the Georgia average and 1242% higher than the national average. The median age in Chickamauga is 36 which is approximately 1% lower than the Georgia average of 36. In Chickamauga, 58% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 46% of Chickamauga residents were born in Georgia, 52% were born out of state, 1% were born outside of the United States and 2% were foreign born.