Mount Zion, GA has a population of 1,778 and is the 11,711th largest city in the United States. The population density is 183 per sq mi which is 10% higher than the Georgia average and 102% higher than the national average. The median age in Mount Zion is 33 which is approximately 10% lower than the Georgia average of 36. In Mount Zion, 58% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 79% of Mount Zion residents were born in Georgia, 18% were born out of state, 1% were born outside of the United States and 2% were foreign born.