Leslie, MI has a population of 1,865 and is the 11,438th largest city in the United States. The population density is 1,454 per sq mi which is 1342% higher than the Michigan average and 1505% higher than the national average. The median age in Leslie is 35 which is approximately 11% lower than the Michigan average of 40. In Leslie, 59% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 82% of Leslie residents were born in Michigan, 18% were born out of state, 0% were born outside of the United States and 0% were foreign born.