Dexter, MI has a population of 4,319 and is the 7,092nd largest city in the United States. The population density is 2,329 per sq mi which is 2209% higher than the Michigan average and 2471% higher than the national average. The median age in Dexter is 36 which is approximately 10% lower than the Michigan average of 40. In Dexter, 66% of the population over 15 years of age are married, 90% speak English and 6% speak Spanish. 63% of Dexter residents were born in Michigan, 29% were born out of state, 1% were born outside of the United States and 7% were foreign born.