Ever notice the rest of the world has different slang terms for where you live than you and the rest of the locals? Or perhaps they just pronounce it differently? I can think of a few for here:
Los Angeles - Locals: loss an-jel-iss (or ess), Brits: loss an-jel-eeez
Orange County - Locals: OC, everyone else: "the" OC, or LA
California - Locals: CA, Cal, Calif., non-locals: Cali
The San Fernando Valley - in LA: "The" Valley, everyone else: which valley do you mean?
northern California - in northern CA: NorCal, in southern CA: NoCal (we do it partly as a play on our SoCal, and partly because it pisses off the NoCalers)
Can you think of more for where YOU live?