Side-by-side official data
Chiba vs Ibaraki
12 sourced measures, clear differences, and reference years you can check.
At a glance. Chiba has the larger population in the 2024 estimates. Ibaraki has the larger total area. Population and area are rounded in the official source.
The comparison
How the figures differ
| Measure | Chiba ↗ | Ibaraki ↗ | Absolute difference | Higher figure |
|---|---|---|---|---|
| Population ↗thousand people · 2024 | 6,251 | 2,806 | 3,445 | Chiba |
| Total area ↗km² · 2024 | 5,156 | 6,098 | 942 | Ibaraki |
| Population density ↗people/km² · 2024 | 1,212 | 460 | 752 | Chiba |
| Inhabitable area ↗km² · 2024 | 3,533 | 3,890 | 357 | Ibaraki |
| Inhabitable area density ↗people/km² · 2024 | 1,769 | 721 | 1,048 | Chiba |
| Population aged 0–14 ↗thousand people · 2024 | 688 | 303 | 385 | Chiba |
| Population aged 15–64 ↗thousand people · 2024 | 3,804 | 1,637 | 2,167 | Chiba |
| Population aged 65+ ↗thousand people · 2024 | 1,759 | 866 | 893 | Chiba |
| Private households ↗households · 2020 | 2,767,661 | 1,181,598 | 1,586,063 | Chiba |
| Members per household ↗people · 2020 | 2.23 | 2.37 | 0.14 | Ibaraki |
| Live birth rate ↗per 1,000 people · 2023 | 5.9 | 5.4 | 0.5 | Chiba |
| Death rate ↗per 1,000 people · 2023 | 12 | 13.7 | 1.7 | Ibaraki |
Higher means a larger numerical value; it does not mean a better outcome. Age-group populations are published in thousands. Ratios use the rounded published figures: Chiba's population is 2.23× Ibaraki's.
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Sources. Statistical Handbook of Japan 2026 and Japan Statistical Yearbook 2026, Statistics Bureau of Japan. Reference years are shown per measure. Snapshot reviewed 2026-10-08. Methodology →