This probably doesn’t surprise anyone but disc golf is a sport that continues to grow. “The sport has grown at a rate of 12-15 percent annually for more than the past decade, with nearly 3000 courses in the US and more than 3000 globally (source).”
You can read more about demographics and historical stats from disc golf by clicking here and downloading the PDF. There is lots of good information here.
If you’re interested in looking at building a disc golf course, you can find out more here. They are relatively inexpensive.