Roanoke, IN has a population of 1,754 and is the 11,794th largest city in the United States. The population density is 1,458 per sq mi which is 712% higher than the Indiana average and 1509% higher than the national average. The median age in Roanoke is 38 which is approximately equal to the Indiana average of 37. In Roanoke, 67% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 77% of Roanoke residents were born in Indiana, 22% were born out of state, 0% were born outside of the United States and 1% were foreign born.