Wikipedia:Articles for deletion/Fort John, California
Satisfies  as a legally recognized populated place. Note that there is no consensus whatsoever as to the meaning of "legally recognized" in that guideline - it could range from "not an illegal encampment" to "a fully chartered town". However it's clear form the articles we keep on unincorporated communities that having recognition in official sources such as maps that the places is an established settlement is sufficient for us to have an article on it. Anyway, regardless of this argument the current sourcing in the article satisfies 
— User:Pontificalibus, 09:01, 12 February 2021 (UTC)
Stance: keep
Cited policy: WP:GEOLAND||WP:GNG (Wikipedia:Notability)