Complex sentence: It contains several Elementary, Middle, and High Schools, with a total enrollment of over 16,000 students, making it the second largest school district in Macomb County, and the ninth largest in the state of Michigan.
Split into simpler sentences: It contains several Elementary, Middle, and High Schools, with a total enrollment of over 16,000 students. It is the second largest school district in Macomb County, and the ninth largest in the state of Michigan.