Forest Park, GA has a population of 19,156 and is the 2,268th largest city in the United States. The population density is 2,058 per sq mi which is 1133% higher than the Georgia average and 2171% higher than the national average. The median age in Forest Park is 32 which is approximately 11% lower than the Georgia average of 36. In Forest Park, 41% of the population over 15 years of age are married, 64% speak English and 25% speak Spanish. 57% of Forest Park residents were born in Georgia, 19% were born out of state, 1% were born outside of the United States and 24% were foreign born.