Brookhaven, GA has a population of 51,567 and is the 790th largest city in the United States. The population density is 4,452 per sq mi which is 2567% higher than the Georgia average and 4814% higher than the national average. The median age in Brookhaven is 33 which is approximately 8% lower than the Georgia average of 36. In Brookhaven, 48% of the population over 15 years of age are married, 68% speak English and 23% speak Spanish. 39% of Brookhaven residents were born in Georgia, 37% were born out of state, 1% were born outside of the United States and 23% were foreign born.