Nolensville, TN has a population of 6,724 and is the 5,321st largest city in the United States. The population density is 738 per sq mi which is 382% higher than the Tennessee average and 715% higher than the national average. The median age in Nolensville is 34 which is approximately 11% lower than the Tennessee average of 39. In Nolensville, 71% of the population over 15 years of age are married, 93% speak English and 1% speak Spanish. 44% of Nolensville residents were born in Tennessee, 48% were born out of state, 1% were born outside of the United States and 6% were foreign born.