Microsoft S&T shows two State Parks near by
Proud Lake and Pontiac Lake
IN addition there are membership campgrounds in the area if you have Coast to Coast,
And there are other CG's I know there is either a KOA or Jellystone in the Holly/Groveland TWP area which is a few mile east of there
(But did not show up on my 10 mile search circle)
The membership park IN Highland Twp (NOT highlands) is Waldon Woods as I recall, it's on the side of US-23 between I-96 and I-69
If you need more, let me know and I'll see what I can find out.
I'll be parked in Davison Michigan (North and east) next week if all goes as hoped.
Home is where I park it!