Merrifield, MN has a population of 117 and is the 26,497th largest city in the United States. The population density is 216 per sq mi which is 248% higher than the Minnesota average and 138% higher than the national average. The median age in Merrifield is 65 which is approximately 71% higher than the Minnesota average of 38. In Merrifield, 86% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 65% of Merrifield residents were born in Minnesota, 35% were born out of state, 0% were born outside of the United States and 0% were foreign born.