Harlem, GA has a population of 2,914 and is the 8,953rd largest city in the United States. The population density is 645 per sq mi which is 286% higher than the Georgia average and 612% higher than the national average. The median age in Harlem is 35 which is approximately 3% lower than the Georgia average of 36. In Harlem, 52% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 63% of Harlem residents were born in Georgia, 33% were born out of state, 2% were born outside of the United States and 3% were foreign born.