The official Shueisha website has currently provided an updated subdivision of all the arcs and sagas of One Piece. These are different from common fan subdivisions like the “Romance Dawn Arc” or “Yonko Saga”, which while widely used by fans, are not recognized by Shueisha. Here’s the official classification of all the story arcs and sagas of One Piece from their official website:
- “East Blue Saga” (Chapters 1-101) 101 Chapters
Dawn Island (Chapter 1) 1 Chapter
Goat Island (Chapter 2) 1 Chapter
Shells Town (Chapters 3-7) 5 Chapters
Organ Archipelago (Chapters 8-21) 14 Chapters
Rare Animal Island (Chapter 22) 1 Chapter
Gecko Archipelago (Chapter 23-41) 19 Chapters
Sea Restaurant Baratie (Chapters 42-68) 27 Chapters
Conomi Archipelago (Chapters 69-95) 27 Chapters
Loguetown (Chapters 96-101) 6 Chapters - “Alabasta Saga” (Chapters 102-218) 117 Chapters
Reverse Mountain (Chapters 102-105) 4 Chapters
Cactus Island (Chapters 106-114) 9 Chapters
Little Garden (Chapters 115-129) 15 Chapters
Drum Island (Chapters 130-154) 25 Chapters
Sandy Island Alabasta Kingdom (Chapters 155-218) 64 Chapters - “Sky Island Saga” (Chapters 219-303) 85 Chapters
Jaya (Chapter 219-236) 18 Chapters
Skypiea (Chapter 237-303) 67 Chapters - “Water Seven/Enies Lobby Saga” (Chapters 304-441) 138 Chapters
Long Ring Long Land (Chapters 304-321) 18 Chapters
Water 7 (Chapters 322-375) 54 Chapters
Enies Lobby (Chapters 376-430) 55 Chapters
Water Seven Post-Rescuing Robin (Chapters 431-441) 11 Chapters - “Thriller Bark Saga” (Chapters 442-490) 49 Chapters
Thriller Bark (Chapters 442-490) 49 chapters - “Summit War Saga” (Chapters 491-597) 107 Chapters
Sabaody Archipelago (Chapters 491-513) 23 Chapters
Island of Women Amazon Lily (Chapters 514-524) 11 Chapters
Impel Down (Chapter 525-548) 24 Chapters
Marineford (Chapter 549-581) 33 Chapters
Island of Women Amazon Lily Post-Summit War Conclusion (Chapters 582-597) 16 Chapters - “Fishman Island Saga” (Chapters 598-653) 56 Chapters
Sabaody Archipelago (2 Years Later) (Chapter 598-602) 5 Chapters
Fishman Island Ryuuguu Kingdom (Chapters 603-653) 51 Chapters - “Punk Hazard Saga” (Chapters 652-699) 48 Chapters
Punk Hazard (Chapters 652-699) 48 Chapters - “Dressrosa Saga” (Chapters 700-801) 102 Chapters
Dressrosa (Chapters 700-801) 102 Chapters - “Zou Saga” (Chapters 802-822) 21 Chapters
Zou Mokomo Dukedom (Chapters 802-822) 21 Chapters - “Whole Cake Island Saga” (Chapters 823-908) 86 Chapters
Totto Land (Chapters 823-908) 86 Chapters - “Wano Country Saga” (Chapters 909-Present) 146 Chapters (As of 1054)
Wano Country (Chapters 909-Present) 146 Chapters and counting
Some answers to some questions you might have about this subdivision:
- Why are Punk Hazard and Zou their own Sagas despite being very short/set up arcs?
We don’t have an official answer, but my best guess would be that because both set up more than just one saga. While arcs like Whiskey Peak or
Jaya only set up their sagas, Punk Hazard and Zou set up several sagas, and as such it’s hard to make them part of a specific saga if they also set
up another, for which they are considered individual sagas. There’s no rule about the length a saga must have, so if Shueisha says this is how it is
that’s all that matters - Why is Reverie not included as a subdivision/”arc”?
We don’t have an official aswer, but I guess officially the Reverie is considered the same as those post-arc chapters where we see the outside world
(like at the end of Water Seven, for example), just slightly extended, but is only considered a peek into the world added at the end of the Whole
Cake Island Saga, not a full blown arc starring Luffy - Why are some arc names different from the names I’ve seen online?
One Piece wikis and fan sites often use fan nomenclature for arcs (like “Romance Dawn” or “Arlong Park”), so be careful about that. The official
naming provided here is a lot more generally consistent, since for example, the “Arlong Park Arc” doesn’t take place just at the park, so Conomi
Archipelago is a more fitting name. Similarly while called the Whole Cake Island Saga, it’s subsection is called “Totto Land”, as the story takes
place all over the country
Note that it’s perfectly fine to use different arc names or structures if you prefer them, this is just to keep in mind what’s official!
Here is also a visual breakdown for the Sagas in the manga and anime:
The Library of Ohara 