Germantown, TN has a population of 39,213 and is the 1,060th largest city in the United States. The population density is 1,962 per sq mi which is 1182% higher than the Tennessee average and 2066% higher than the national average. The median age in Germantown is 46 which is approximately 18% higher than the Tennessee average of 39. In Germantown, 73% of the population over 15 years of age are married, 90% speak English and 1% speak Spanish. 50% of Germantown residents were born in Tennessee, 42% were born out of state, 1% were born outside of the United States and 7% were foreign born.