St. Hilaire, MN has a population of 276 and is the 22,899th largest city in the United States. The population density is 353 per sq mi which is 470% higher than the Minnesota average and 290% higher than the national average. The median age in St. Hilaire is 44 which is approximately 15% higher than the Minnesota average of 38. In St. Hilaire, 56% of the population over 15 years of age are married, 95% speak English and 4% speak Spanish. 67% of St. Hilaire residents were born in Minnesota, 31% were born out of state, 0% were born outside of the United States and 2% were foreign born.