Martin, TN has a population of 10,989 and is the 3,669th largest city in the United States. The population density is 886 per sq mi which is 479% higher than the Tennessee average and 878% higher than the national average. The median age in Martin is 24 which is approximately 37% lower than the Tennessee average of 39. In Martin, 37% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 69% of Martin residents were born in Tennessee, 27% were born out of state, 0% were born outside of the United States and 3% were foreign born.