Helenwood, TN has a population of 850 and is the 16,186th largest city in the United States. The population density is 133 per sq mi which is 13% lower than the Tennessee average and 47% higher than the national average. The median age in Helenwood is 46 which is approximately 20% higher than the Tennessee average of 39. In Helenwood, 42% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 77% of Helenwood residents were born in Tennessee, 22% were born out of state, 0% were born outside of the United States and 1% were foreign born.