Peck, MI has a population of 672 and is the 17,722nd largest city in the United States. The population density is 650 per sq mi which is 545% higher than the Michigan average and 618% higher than the national average. The median age in Peck is 38 which is approximately 3% lower than the Michigan average of 40. In Peck, 53% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 96% of Peck residents were born in Michigan, 3% were born out of state, 0% were born outside of the United States and 1% were foreign born.