Fairgrove, MI has a population of 524 and is the 19,258th largest city in the United States. The population density is 467 per sq mi which is 363% higher than the Michigan average and 416% higher than the national average. The median age in Fairgrove is 39 which is approximately 1% lower than the Michigan average of 40. In Fairgrove, 53% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 95% of Fairgrove residents were born in Michigan, 5% were born out of state, 0% were born outside of the United States and 0% were foreign born.