Knoxville, TN has a population of 183,927 and is the 132nd largest city in the United States. The population density is 1,863 per sq mi which is 1117% higher than the Tennessee average and 1956% higher than the national average. The median age in Knoxville is 33 which is approximately 14% lower than the Tennessee average of 39. In Knoxville, 42% of the population over 15 years of age are married, 92% speak English and 4% speak Spanish. 62% of Knoxville residents were born in Tennessee, 31% were born out of state, 1% were born outside of the United States and 6% were foreign born.