Auburn Hills, MI has a population of 22,342 and is the 1,944th largest city in the United States. The population density is 1,343 per sq mi which is 1232% higher than the Michigan average and 1383% higher than the national average. The median age in Auburn Hills is 30 which is approximately 24% lower than the Michigan average of 40. In Auburn Hills, 42% of the population over 15 years of age are married, 80% speak English and 3% speak Spanish. 66% of Auburn Hills residents were born in Michigan, 14% were born out of state, 1% were born outside of the United States and 20% were foreign born.