Dickson, TN has a population of 15,098 and is the 2,817th largest city in the United States. The population density is 748 per sq mi which is 388% higher than the Tennessee average and 725% higher than the national average. The median age in Dickson is 36 which is approximately 5% lower than the Tennessee average of 39. In Dickson, 52% of the population over 15 years of age are married, 95% speak English and 3% speak Spanish. 70% of Dickson residents were born in Tennessee, 26% were born out of state, 1% were born outside of the United States and 4% were foreign born.