The state of Ohio has only 26 confirmed cases, but two days ago the Director of the Ohio Department of Health estimated that 1% of the state's population (100k) may be infected due to the high ratio of cases being community-spread [1].

This is the likely reason for such a high number of celebrities in the news testing positive -- it's already everywhere; they are the only ones getting tested.

[1] https://www.wkyc.com/article/news/health/coronavirus/ohio-de...