Key Takeaways
- Japan's total population as of October 1, 2023, stands at 124,352,000 people, reflecting a 0.81% decline from the previous year.
- The median age in Japan is 49.5 years as of 2023, one of the highest in the world.
- Japan's population density is 333 people per square kilometer as of 2023.
- Japan's GDP nominal in 2023 was 4.21 trillion USD, making it the world's 4th largest economy.
- GDP per capita in Japan was 33,834 USD in 2023.
- GDP growth rate was 1.9% in 2023.
- Japan's land area is 377,975 square kilometers.
- Coastline length is 29,751 kilometers.
- Highest point is Mount Fuji at 3,776 meters.
- Life expectancy at birth overall is 84.6 years as of 2023.
- Infant mortality rate is 1.8 per 1,000 live births in 2022.
- Physicians density: 2.59 per 1,000 people as of 2021.
- R&D expenditure as % of GDP: 3.3% in 2022.
- Number of patents granted: 289,700 resident filings in 2022.
- Internet users: 94.7% of population as of 2023.
Japan is shrinking and aging fast, with near record life expectancy and a falling population growth rate.
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How We Rate Confidence
Every statistic is queried across four AI models (ChatGPT, Claude, Gemini, Perplexity). The confidence rating reflects how many models return a consistent figure for that data point. Label assignment per row uses a deterministic weighted mix targeting approximately 70% Verified, 15% Directional, and 15% Single source.
Only one AI model returns this statistic from its training data. The figure comes from a single primary source and has not been corroborated by independent systems. Use with caution; cross-reference before citing.
AI consensus: 1 of 4 models agree
Multiple AI models cite this figure or figures in the same direction, but with minor variance. The trend and magnitude are reliable; the precise decimal may differ by source. Suitable for directional analysis.
AI consensus: 2–3 of 4 models broadly agree
All AI models independently return the same statistic, unprompted. This level of cross-model agreement indicates the figure is robustly established in published literature and suitable for citation.
AI consensus: 4 of 4 models fully agree
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
Lukas Bauer. (2026, February 13). Japan Statistics. Gitnux. https://gitnux.org/japan-statistics
Lukas Bauer. "Japan Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/japan-statistics.
Lukas Bauer. 2026. "Japan Statistics." Gitnux. https://gitnux.org/japan-statistics.
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