Dunwoody, GA has a population of 48,128 and is the 856th largest city in the United States. The population density is 3,696 per sq mi which is 1877% higher than the Georgia average and 3980% higher than the national average. The median age in Dunwoody is 37 which is approximately 2% higher than the Georgia average of 36. In Dunwoody, 59% of the population over 15 years of age are married, 76% speak English and 7% speak Spanish. 33% of Dunwoody residents were born in Georgia, 44% were born out of state, 1% were born outside of the United States and 22% were foreign born.