Prefecture profile · Chugoku
Okayama 岡山県
Official population, land, age, household and vital statistics, with rankings across Japan's 47 prefectures.
At a glance
Reference years: 2020–2024Key statistics
Population age groups are published in thousands. Area and density figures are rounded independently in the source; density may differ from a calculation using displayed values.
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Okayama in Japan
| Measure | Value | Year | Japan rank |
|---|---|---|---|
| Population ↗ | 1,831 thousand people | 2024 | #20 / 47 |
| Total area ↗ | 7,114 km² | 2024 | #17 / 47 |
| Population density ↗ | 257 people/km² | 2024 | #24 / 47 |
| Inhabitable area ↗ | 2,228 km² | 2024 | #22 / 47 |
| Inhabitable area density ↗ | 822 people/km² | 2024 | #20 / 47 |
| Population aged 0–14 ↗ | 215 thousand people | 2024 | #19 / 47 |
| Population aged 15–64 ↗ | 1,045 thousand people | 2024 | #20 / 47 |
| Population aged 65+ ↗ | 571 thousand people | 2024 | #21 / 47 |
| Private households ↗ | 799,611 households | 2020 | #18 / 47 |
| Members per household ↗ | 2.3 people | 2020 | #25 / 47 |
| Live birth rate ↗ | 6.4 per 1,000 people | 2023 | #9 / 47 |
| Death rate ↗ | 13.9 per 1,000 people | 2023 | #30 / 47 |
Continue exploring
View the regional overview →Nearby in Chugoku
Sources and update. Figures come from the Statistical Handbook of Japan 2026 and Japan Statistical Yearbook 2026, published by the Statistics Bureau of Japan. Each measure shows its reference year. Snapshot reviewed 2026-10-08. Full methodology →