Big Rapids, MI has a population of 10,543 and is the 3,752nd largest city in the United States. The population density is 2,421 per sq mi which is 1285% higher than the Michigan average and 2572% higher than the national average. The median age in Big Rapids is 22 which is approximately 44% lower than the Michigan average of 39. In Big Rapids, 24% of the population over 15 years of age are married, 94% speak English and 2% speak Spanish. 79% of Big Rapids residents were born in Michigan, 17% were born out of state, 0% were born outside of the United States and 4% were foreign born.