Are people still living out on the west coast?
How about in Cuba?
Are other countries still transmitting?
How to Get News During A Zombie Apocalypse
To answer these questions about the world, you are going to want to have a radio with reception on the AM/FM and Shortwave (SW) bands. In the evenings, AM radio waves can skip in the atmosphere and travel very long distances. For example, if you live in the eastern United States you might get radio stations from Minnesota or Cuba. Among amateur radio enthusiasts, there is a whole hobby that has sprung up around listening to far off radio transmitters. It's called DXing for "Distance Xmitter" (or Transmitter). To learn more about how you can pull in far away AM radio stations check out this page on AM DXing.
If you can't pull in radio stations in your home country, you might worry that the entire world has succumbed to Zombies. However, if you have a shortwave radio, you may be able to pick up stations from countries all over the globe. Check out this page for an introduction to Shortwave radio.