St. Mary of the Woods, IN has a population of 782 and is the 16,757th largest city in the United States. The population density is 613 per sq mi which is 241% higher than the Indiana average and 576% higher than the national average. The median age in St. Mary of the Woods is 50 which is approximately 35% higher than the Indiana average of 37. In St. Mary of the Woods, 39% of the population over 15 years of age are married, 96% speak English and 3% speak Spanish. 78% of St. Mary of the Woods residents were born in Indiana, 16% were born out of state, 1% were born outside of the United States and 6% were foreign born.