Jamestown, TN has a population of 1,997 and is the 11,037th largest city in the United States. The population density is 682 per sq mi which is 345% higher than the Tennessee average and 653% higher than the national average. The median age in Jamestown is 40 which is approximately 4% higher than the Tennessee average of 39. In Jamestown, 46% of the population over 15 years of age are married, 93% speak English and 7% speak Spanish. 59% of Jamestown residents were born in Tennessee, 34% were born out of state, 3% were born outside of the United States and 4% were foreign born.