Clayton, GA has a population of 1,872 and is the 11,414th largest city in the United States. The population density is 562 per sq mi which is 237% higher than the Georgia average and 520% higher than the national average. The median age in Clayton is 49 which is approximately 36% higher than the Georgia average of 36. In Clayton, 54% of the population over 15 years of age are married, 83% speak English and 17% speak Spanish. 45% of Clayton residents were born in Georgia, 41% were born out of state, 0% were born outside of the United States and 14% were foreign born.