Rockwood, TN has a population of 5,443 and is the 6,106th largest city in the United States. The population density is 677 per sq mi which is 342% higher than the Tennessee average and 647% higher than the national average. The median age in Rockwood is 47 which is approximately 21% higher than the Tennessee average of 39. In Rockwood, 59% of the population over 15 years of age are married, 96% speak English and 1% speak Spanish. 65% of Rockwood residents were born in Tennessee, 31% were born out of state, 0% were born outside of the United States and 4% were foreign born.