Well, three locations if you count the Death Star. But that means that there's only one new location.

Star Wars - Tatooine, Death Star, Yavin IV - all never-before-seen (obviously)

Empire - Hoth, Dagobah, Bespin - all never-before-seen

Jedi - Tatooine, Death Star, Endor's moon - only one never-before-seen

Phantom - Naboo, Tatooine, Coruscant - two never-before-seen

Clones - Coruscant, Naboo, Tatooine, Kamino, Geonosis - two never-before-seen

Sith - Coruscant, Tatooine, Utapau, Mustafar, Kashyyyk - three never-before-seen (not counting the few we catch glimpses of in the Order 66 sequence)

Jedi feels very small, indeed.