The Minneapolis/St. Paul area is The Twin Cities or just The Cities.
The Phoenix area is The Valley of the Sun.
The Chicago area is Chicagoland.
Any others?
The Philadelphia area is called the Delaware Valley.
The greater Toronto area is called the, uh, “Greater Toronto Area” (frequently abbreviated as GTA in newspapers and such). If you expand that a bit to take in Hamilton and the communities on the south side of Lake Ontario, you get the “Golden Horseshoe”, but that term isn’t nearly so widely used. (IMHO, it smacks of the kind of naive growth-at-any-cost boosterism that was so common in the Fifties.)
“Central Ohio” is semi-official for the Columbus metro area, since it’s in the name of some government bodies, e.g., the Central Ohio Transit Authority.
The Raleigh-Durham-Chapel Hill area is called The Triangle. If you expand it to include Greensboro and Winston-Salem, it’s called the Triad. Sometimes this area is also referred to as the Piedmont.
I used to live in Virginia Beach, which is part of the Tidewater area (Virginia Beach/Norfolk/Chesapeake/Portsmouth/Hampton/Newport News). It’s also frequently referred to as Hampton Roads.
The Center of the Known Universe.
(NYC)
Thanks to Nelly, I live in Tha Lou’
Oh yeah, there’s that “Gateway to the West” thing, too.
San Bernardino/Riverside/Redlands is known as the Tri-City area, or more commonly the Inland Empire.
Not to be argumentative, but “Chicagoland” is really more in reference to Chicago and the extended suburbs. If you’re a used-car deal, this can be as far out as Rockford!
Chicago referents by category:
If you are a : term
[ul]
[li]Suburbanite : “The City”[/li][li]Businessperson : “The Loop”[/li][li]City-dweller outside of the Loop : “downtown”[/li][/ul]
Sorry for getting too detailed.
Not my area, but L.A. is The Southland.
Our area is generically referred to as Tampa Bay (or the Bay area), but it’s also called the Suncoast.
Cincinnati was called the Queen City and/or Porkopolis.
Boston’s metropolitan area is called simply Greater Boston. The city itself is called The Hub, as in The Hub of the Universe (no, really).
This area is generally known as Wine Country. We’re also considered North Bay, although I think we’re probably barely in or just out of that zone, though I use it.
The main metro area being the San Francisco Bay Area (North Bay, South Bay, East Bay.)
Foof. There is only one The Bay Area, and it’s the San Francisco Bay Area. Tampa Bay Area my aunt Fanny!
The part I live in is also called Silicon Valley.
Mile High City.
Which kinda sucks that Denver gets the ominous moniker because most of the suburbs are WELL above the 1 mile mark.
:rolleyes: 
Actually, my location is a play on the comment everyone makes about NYC: “The city that never sleeps”.
Mine is: The Capital District, Capital Area, or Capital Region.
Albany and surrounding cities. (Upstate NY)
I spent several years in the Charlotte/Fort Mill/Rock Hill area, and that was known as The Piedmont. 
Anyway, Tucson is also known as the Old Pueblo or the Baked Apple.
We call it D.C.
We have little imagination.
–Cliffy
Baton Rouge is often called “Red Stick,” for obvious reasons.
New Orleans = “Crescent City”