St. Marys Point, MN has a population of 351 and is the 21,594th largest city in the United States. The population density is 910 per sq mi which is 1370% higher than the Minnesota average and 904% higher than the national average. The median age in St. Marys Point is 50 which is approximately 31% higher than the Minnesota average of 38. In St. Marys Point, 67% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 76% of St. Marys Point residents were born in Minnesota, 22% were born out of state, 1% were born outside of the United States and 1% were foreign born.