Fertile, MN has a population of 997 and is the 15,185th largest city in the United States. The population density is 480 per sq mi which is 676% higher than the Minnesota average and 430% higher than the national average. The median age in Fertile is 45 which is approximately 19% higher than the Minnesota average of 38. In Fertile, 58% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 72% of Fertile residents were born in Minnesota, 27% were born out of state, 1% were born outside of the United States and 0% were foreign born.