Monroe, GA has a population of 13,253 and is the 3,152nd largest city in the United States. The population density is 856 per sq mi which is 413% higher than the Georgia average and 844% higher than the national average. The median age in Monroe is 32 which is approximately 11% lower than the Georgia average of 36. In Monroe, 44% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 70% of Monroe residents were born in Georgia, 26% were born out of state, 2% were born outside of the United States and 1% were foreign born.