Rockwood, MI has a population of 3,209 and is the 8,467th largest city in the United States. The population density is 1,273 per sq mi which is 1162% higher than the Michigan average and 1305% higher than the national average. The median age in Rockwood is 44 which is approximately 12% higher than the Michigan average of 40. In Rockwood, 54% of the population over 15 years of age are married, 91% speak English and 2% speak Spanish. 78% of Rockwood residents were born in Michigan, 11% were born out of state, 0% were born outside of the United States and 11% were foreign born.