Where to start the JoJo's Bizarre Adventure manga after the anime

Give it the last episode you watched. The mappings cover whole seasons. At a season boundary, the answer gives the next unread chapter; within a season, it gives a conservative starting point that may repeat material.

Which anime JoJo's Bizarre AdventureJoJo's Bizarre Adventure: Stardust CrusadersJoJo's Bizarre Adventure: Diamond Is UnbreakableJoJo's Bizarre Adventure: Golden WindJoJo's Bizarre Adventure: Stone Ocean The last episode you watched Find my volume

Every span the anime adapts

One row per season or film: the episodes, the chapters they adapt, and a note on where the boundary falls.

Anime	Episodes	Chapters	Note
JoJo's Bizarre Adventure Part 1: Phantom Blood	1–9	1–44	Chapters on these rows are counted straight through the parts. ANN marks episode 9 as the end of Part 1, and Shueisha's Shonen Jump+ edition, which restarts its chapter numbers at 1 in each part, gives Phantom Blood 44 chapters.
JoJo's Bizarre Adventure: Stardust Crusaders Part 3: Stardust Crusaders	1–48	114–265	Stardust Crusaders aired as two 24-episode series, numbered 1 to 48 on the official anime site. It is chapters 114 to 265 counted straight through, 1 to 152 in Shueisha's Shonen Jump+ edition, and the last episode shares its Japanese title with chapter 152 there, per ANN.
JoJo's Bizarre Adventure: Diamond Is Unbreakable Part 4: Diamond Is Unbreakable	1–39	266–439	Diamond Is Unbreakable's 39 episodes cover chapters 266 to 439 counted straight through, 1 to 174 in Shueisha's Shonen Jump+ edition. The last episode, 'Goodbye, Morioh - The Heart of Gold' in ANN's English, shares its Japanese title with chapter 174.
JoJo's Bizarre Adventure: Golden Wind Part 5: Golden Wind	1–39	440–594	Golden Wind's 39 episodes cover chapters 440 to 594 counted straight through, 1 to 155 in Shueisha's Shonen Jump+ edition. The last episode, 'Sleeping Slaves', takes its Japanese title from the closing chapters, which end the part at chapter 155.
JoJo's Bizarre Adventure: Stone Ocean Part 6: Stone Ocean	1–38	595–752	Stone Ocean's 38 episodes cover the whole part: 158 chapters in Shueisha's Shonen Jump+ edition, 595 to 752 continuing the count here. ANN's English title for episode 38 is 'It's a Wonderful World', but in Japanese it shares chapter 158's title, 'What a Wonderful World'. The next chapter, 753 here, is chapter 1 of Part 7, Steel Ball Run.
JoJo's Bizarre Adventure Part 2: Battle Tendency	10–26	45–113	ANN marks episode 10 as the start of Part 2 and episode 26 as its end. Battle Tendency is chapters 45 to 113 counted straight through, chapters 1 to 69 in Shueisha's Shonen Jump+ edition.