Jackson, TN has a population of 67,162 and is the 548th largest city in the United States. The population density is 1,149 per sq mi which is 651% higher than the Tennessee average and 1168% higher than the national average. The median age in Jackson is 36 which is approximately 8% lower than the Tennessee average of 39. In Jackson, 50% of the population over 15 years of age are married, 94% speak English and 4% speak Spanish. 71% of Jackson residents were born in Tennessee, 25% were born out of state, 1% were born outside of the United States and 3% were foreign born.