Auburn Hills, MI has a population of 21,639 and is the 1,967th largest city in the United States. The population density is 1,304 per sq mi which is 646% higher than the Michigan average and 1339% higher than the national average. The median age in Auburn Hills is 31 which is approximately 20% lower than the Michigan average of 39. In Auburn Hills, 45% of the population over 15 years of age are married, 82% speak English and 6% speak Spanish. 67% of Auburn Hills residents were born in Michigan, 16% were born out of state, 1% were born outside of the United States and 16% were foreign born.