Wikipedia:Articles for deletion/Living Presidents of the United States
somewhat disingenuous to dismiss this as a mere "miscellaneous statistic". Popular media discuss this topic on a regular basis, for instance in widely circulated magazines we have https://www.usnews.com/news/national-news/slideshows/on-jan-20-5-former-us-presidents-will-be-alive and https://www.theatlantic.com/politics/archive/2013/04/here-are-all-5-living-presidents-together-at-the-george-w-bush-library/275296/ , and both of these articles discuss not only the current set of former presidents but also some history of this set as of previous eras. The  criteria of "a list topic is considered notable is if it has been discussed as a group or set by independent reliable sources" certainly seems to be established
— User:P, 22:13, 26 February 2017 (UTC)
Stance: keep
Cited policy: WP:LISTN (Wikipedia:Notability)