Monticello, FL has a population of 2,000 and is the 11,026th largest city in the United States. The population density is 503 per sq mi which is 71% higher than the Florida average and 455% higher than the national average. The median age in Monticello is 47 which is approximately 13% higher than the Florida average of 42. In Monticello, 57% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 59% of Monticello residents were born in Florida, 39% were born out of state, 1% were born outside of the United States and 2% were foreign born.