VEGETABLES
Yam production by prefecture
Hokkaido grows or catches the most yam in Japan: 70,900 t, 48.7% of the national total. Next come Aomori Prefecture and Nagano Prefecture. This survey covers the main producing prefectures only; prefectures not listed were not surveyed.
| Rank | Prefecture | Output (t) | Share |
|---|---|---|---|
| #1 | Hokkaido | 70,900 | 48.7% |
| #2 | Aomori Prefecture | 44,700 | 30.7% |
| #3 | Nagano Prefecture | 6,430 | 4.4% |
| #4 | Chiba Prefecture | 5,310 | 3.6% |
| #5 | Gunma Prefecture | 3,900 | 2.7% |
| #6 | Iwate Prefecture | 3,250 | 2.2% |
| #7 | Ibaraki Prefecture | 2,570 | 1.8% |
| #8 | Tottori Prefecture | 1,260 | 0.9% |
| #9 | Akita Prefecture | 693 | 0.5% |
| #10 | Yamanashi Prefecture | 517 | 0.4% |
| — | Japan total | 145,500 | 100% |
Source: MAFF, Crop Statistics Survey / Marine Fishery Production Statistics (e-Stat, 2024 final). Aquaculture counts harvested output.
Q&A
Common questions
Which prefecture produces the most yam in Japan?
Hokkaido, with 70,900 t (48.7% of the national total) in 2024, according to Japan's Ministry of Agriculture.