Mount Pleasant, MI has a population of 25,896 and is the 1,662nd largest city in the United States. The population density is 3,354 per sq mi which is 3225% higher than the Michigan average and 3602% higher than the national average. The median age in Mount Pleasant is 22 which is approximately 44% lower than the Michigan average of 40. In Mount Pleasant, 24% of the population over 15 years of age are married, 93% speak English and 1% speak Spanish. 79% of Mount Pleasant residents were born in Michigan, 14% were born out of state, 1% were born outside of the United States and 6% were foreign born.