Mineral water
Average retail price
- Cheapest surveyed city
- ¥111 Sendai
- Priciest surveyed city
- ¥149 Oita
Retail price survey conducted by the Statistics Bureau of Japan. This is a survey average, not a shop price — actual prices vary by store. 総務省統計局 小売物価統計調査 · Surveyed items and specifications
Key facts
Mineral water costs ¥123.7 per unit in Japan as of August 2026 — the unweighted average of 47 surveyed cities, down 4.2% from a year earlier. Measured as an index, the official CPI for mineral water reads 118.8 (2020 = 100) in August 2026, down 2.9% year on year and up 23.6% over five years.
Mineral water sits in the food group of Japan's CPI basket, with 320 monthly observations from January 2000 to August 2026. The series peaked at 180.4 in May 2000 and bottomed at 91.8 in July 2018; the latest reading is -34.1% against that peak. Against ten years ago it is +26.7%.
Annual average index by year
| Year | Index | YoY % | Months |
|---|---|---|---|
| 2015 | 93.9 | -0.5% | 12 |
| 2016 | 93.4 | -0.5% | 12 |
| 2017 | 92.9 | -0.5% | 12 |
| 2018 | 92.8 | -0.1% | 12 |
| 2019 | 98.0 | +5.6% | 12 |
| 2020 | 100.0 | +2.0% | 12 |
| 2021 | 97.1 | -2.9% | 12 |
| 2022 | 98.4 | +1.3% | 12 |
| 2023 | 108.6 | +10.4% | 12 |
| 2024 | 117.5 | +8.2% | 12 |
| 2025 | 124.3 | +5.8% | 12 |
| 2026 | 120.5 | -3.1% | 8 |
Average of the monthly index values in each year (2020 = 100). Blank months are excluded.
Average retail price by month
| 2026-08 | ¥123.7 |
|---|---|
| 2026-07 | ¥124.2 |
| 2026-06 | ¥125.4 |
| 2026-05 | ¥126.3 |
| 2026-04 | ¥125.4 |
| 2026-03 | ¥126 |
| 2026-02 | ¥127 |
| 2026-01 | ¥127.4 |
| 2025-12 | ¥129.2 |
| 2025-11 | ¥130.7 |
| 2025-10 | ¥131.1 |
| 2025-09 | ¥129.8 |
| 2025-08 | ¥129.1 |
Frequently asked questions
- How much does mineral water cost in Japan?
- ¥123.7 per unit, as of August 2026 — the unweighted average of 47 surveyed cities in the government's retail price survey.
- Which Japanese city has the cheapest mineral water?
- Among the surveyed cities in August 2026, Sendai was cheapest at ¥111 and Oita the most expensive at ¥149.
- How much have mineral water prices changed in Japan over the past year?
- As of August 2026, -2.9% year on year, measured by Japan's official consumer price index (2020 = 100).
- How much have mineral water prices changed in Japan over the past five years?
- +23.6% compared with the same month five years earlier. The index now reads 118.8.
- When were mineral water prices in Japan at their highest?
- The series peaked at 180.4 in May 2000. The latest reading is -34.1% against that peak.
- What is the difference between the index and the yen price?
- This page carries two kinds of number. The index (2020 = 100) measures percentage change over time and is not a yen amount; the yen figure is an actual average retail price from the government's retail price survey. Source: 総務省統計局 消費者物価指数 (e-Stat table 0003427113, nationwide, monthly).