We stayed here 2 years ago.  The office where payment is made is a few miles away from the actual campground.

There is a dump station and water at the fairgrounds.  Along the left side near the dump / water station as you enter are huge grassy sites marked by electrical outlets at the rear of the sites. The rest of the fairgrounds are set up like  a traditional campground on a "loop" style.  It looks like almost all the sites will accommodate a 40 footer easily.

There were 2 or 3 campers who appeared to be long term seasonal guests but it did not distract from our overall stay.

We pull an Imagine 2500RL pulled by a Ford F-150 max trailer package.

We stayed 4 nights and spent the days traveling around Bay City.

Founds a great BBQ that had been shared by MI PLAYGROUND ---  Meaty's Roadhouse BBQ& Sausage Shack Bay City.
We are planning our Summer 2024 travels and will; be stopping at the Bay County Fairgrounds again this summer.