Fontanet, IN has a population of 367 and is the 21,362nd largest city in the United States. The population density is 95 per sq mi which is 47% lower than the Indiana average and 5% higher than the national average. The median age in Fontanet is 57 which is approximately 51% higher than the Indiana average of 37. In Fontanet, 84% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 87% of Fontanet residents were born in Indiana, 13% were born out of state, 0% were born outside of the United States and 0% were foreign born.