Seemed fairly clean and well kept. The campground is located in an industrial area of Indianapolis and caters to transient workers more than the casual RV crowd. It's jam-packed but easy to get in and out of the campground.
Our overall opinion of Mill Creek Campground is poor at best. The advertising and marketing did not match reality. We were jammed into a spot on the second row off the lake. After coming back from a supply run to town, some neighbors had already started a cooking fire in our ring since there was no room on their site for a fire. We will not go back there nor recommend the campground to anyone that asks.