Around 1900, San Francisco got a bit too expensive to die in. Rising property values meant that cemeteries weren’t worthwhile usage of land, and they were officially banned from being built on city limits. By 1912, the dead had been served an eviction notice. So they did what any sane group of people would do, and created a town for the exclusive purpose of housing a truly staggering amount of dead people. This town was eventually incorporated with a small town named Colma that was next-door, housing all of the living people nearby.
As of today, there are about 1,500 living residents and approximately a million permanent residents in the town of Colma, California. As of last count, there are 17 non-pet cemeteries and one pet cemetery. Being founded on the funerary business, the town is heavily into respecting the dead. Funeral processions get extra protections, very few graves are dug up by local frats to use in hilarious pranks, and I was informed by a person who lived nearby that my idea for a Colma-based zombie flick was more than a little disrespectful.
Panoramic view: here. See if you can spot the cemeteries! (Hint: look at picture)