Elizabethton, TN has a population of 14,012 and is the 2,986th largest city in the United States. The population density is 1,434 per sq mi which is 837% higher than the Tennessee average and 1483% higher than the national average. The median age in Elizabethton is 44 which is approximately 15% higher than the Tennessee average of 39. In Elizabethton, 54% of the population over 15 years of age are married, 97% speak English and 3% speak Spanish. 69% of Elizabethton residents were born in Tennessee, 30% were born out of state, 1% were born outside of the United States and 1% were foreign born.