Oak Ridge, FL has a population of 22,689 and is the 1,915th largest city in the United States. The population density is 6,369 per sq mi which is 2069% higher than the Florida average and 6929% higher than the national average. The median age in Oak Ridge is 31 which is approximately 25% lower than the Florida average of 42. In Oak Ridge, 39% of the population over 15 years of age are married, 37% speak English and 39% speak Spanish. 32% of Oak Ridge residents were born in Florida, 20% were born out of state, 10% were born outside of the United States and 38% were foreign born.