That was a depressing little story.
According to Jack London, the end of civilization comes in 2013 on the a wave of a plague no one catches in time.
The story is told by a survivor 60 years later, in California, where the survivors grouped up into tribes from Santa Rosa to San Francisco, with some scattered farther south if my geography is correct without looking at a map. (my geography and spatial locations is horrible, so don't quote me on that LOL)
I lived in the area for a time, so a lot of the place names were familiar. Places I've been to, some I lived in or right next to. I'm trying to picture Niles with no people, Hayward as farmland, and no Fremont. Palo Alto as a small community, and the San Joaquin valley now full of horses. Carmel as an after thought.
None of the sprawl that connects most of the cities and towns in the area between Oakland San Jose.