Middleville, MI has a population of 3,324 and is the 8,301st largest city in the United States. The population density is 1,452 per sq mi which is 1340% higher than the Michigan average and 1503% higher than the national average. The median age in Middleville is 30 which is approximately 24% lower than the Michigan average of 40. In Middleville, 63% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 85% of Middleville residents were born in Michigan, 15% were born out of state, 0% were born outside of the United States and 1% were foreign born.