Otwell, IN has a population of 430 and is the 20,463rd largest city in the United States. The population density is 241 per sq mi which is 34% higher than the Indiana average and 166% higher than the national average. The median age in Otwell is 59 which is approximately 58% higher than the Indiana average of 37. In Otwell, 68% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 94% of Otwell residents were born in Indiana, 6% were born out of state, 0% were born outside of the United States and 0% were foreign born.