Live Oak, FL has a population of 6,921 and is the 5,222nd largest city in the United States. The population density is 914 per sq mi which is 211% higher than the Florida average and 909% higher than the national average. The median age in Live Oak is 34 which is approximately 19% lower than the Florida average of 42. In Live Oak, 40% of the population over 15 years of age are married, 79% speak English and 17% speak Spanish. 69% of Live Oak residents were born in Florida, 16% were born out of state, 0% were born outside of the United States and 14% were foreign born.