GRAINS & TEA
Sweet potatoes production by prefecture
Kagoshima Prefecture grows or catches the most sweet potatoes in Japan: 218,300 t, 30.4% of the national total. Next come Ibaraki Prefecture and Chiba Prefecture. This survey covers the main producing prefectures only; prefectures not listed were not surveyed.
| Rank | Prefecture | Output (t) | Share |
|---|---|---|---|
| #1 | Kagoshima Prefecture | 218,300 | 30.4% |
| #2 | Ibaraki Prefecture | 199,200 | 27.8% |
| #3 | Chiba Prefecture | 83,300 | 11.6% |
| #4 | Miyazaki Prefecture | 77,300 | 10.8% |
| #5 | Tokushima Prefecture | 26,000 | 3.6% |
| #6 | Kumamoto Prefecture | 18,200 | 2.5% |
| — | Japan total | 717,000 | 100% |
Source: MAFF, Crop Statistics Survey / Marine Fishery Production Statistics (e-Stat, 2024 final). Aquaculture counts harvested output.
EAT
Who eats the most?
The city that buys the most is Tokushima (Tokushima Prefecture), at 2.0× the national average per household. The prefecture that grows it most and the one that buys it most are different.
Q&A
Common questions
Which prefecture produces the most sweet potatoes in Japan?
Kagoshima Prefecture, with 218,300 t (30.4% of the national total) in 2024, according to Japan's Ministry of Agriculture.
Where in Japan do people buy the most sweet potatoes?
Tokushima (Tokushima Prefecture) households buy 2.0× the national average (Statistics Bureau of Japan, 2023–2025 average).