Deletion of List of Riverside, California religious institutions

Comment: List of churches makes me wonder, where do we draw the line?  It seems ok for huge cities, but what is the cut off?  Cities of 1 million or more only?  I have no idea, I just know there are some articles similar to this one (yes, |not a reason to keep, I know, I'm not !voting) so the guideline isn't obvious.  The list isn't indiscriminate, and actually, the idea of a list like this makes sense for larger cities, but why not for where I live, Lexington, NC: population 20k?  Obviously absurd, but I'm wondering if there is a threshold for articles like this, and how Riverside fit into the threshold
Stance: comment
Cited policy: Wikipedia:Arguments to avoid in deletion discussions (WP:ATA)