Cairo, GA has a population of 9,708 and is the 4,022nd largest city in the United States. The population density is 998 per sq mi which is 498% higher than the Georgia average and 1001% higher than the national average. The median age in Cairo is 36 which is approximately equal to the Georgia average of 36. In Cairo, 55% of the population over 15 years of age are married, 84% speak English and 16% speak Spanish. 72% of Cairo residents were born in Georgia, 17% were born out of state, 1% were born outside of the United States and 10% were foreign born.