Actually, some friends of mine and I had a lengthly (until 4 am) discussion on what the best course of action would be in the event of a Zombie Uprising..
I live near Sacramento, CA. My survival would be to grab what I could, then head to the river. Water is your best defense against Zombies, as I’m not too certain they can swim well. Float, maybe, but even then it’ll be hard for them to direct an attack in a fast-moving current. I would then head down the river to the San Francisco Bay. Why?
It’s a barren rock, but it’s a defensible rock. The likelyhood of zombies making it to the place are minimal, and even if they could, we’d be too far out in the bay for our delicious brains to be smelled. Sadly, there actually are no man-eating sharks in the bay, though there’s a few species that might appreciate fresh carrion. A place designed to keep people in can become a place designed to keep people out, rather quickly. Got someone who *might* be infected? Lock them up a few days just to keep an eye on them. Bear in mind too that while zombies will quckly infest any major city, they won’t *stay* there, eventually wandering off to find more prey.
There’s not much that can live there, but there’s enough for a small garden. Supplanted with fish from the bay, the occasional seagull, and livestock recovered from farms along the river, you could do well. Pigs and goats kept in former prison cells. Once the zombies die off or wander out of the cities along the bay, there is a lot of scrounging that can be done, with a safe retreat to the boats just a block or two away.
I figure you could support about fifty people easily, a hundred once things got properly set up and self-sufficient, and as many as five hundred if supplies from an outside source were coming in. With a little work, you could even have a decent fishing community in the Bay and its tributaries, using the place as a central trade post and marketplace. And if some tinpot decides to claim Alcatraz first, not a problem. There’s plenty of other defensible islands in the bay and on the rivers. Heck, with some work and a little dynamite, one could even demolish chunks of the bridges in the area and live hundreds of feet above the waves..