Side-by-side official data
Yamagata vs Iwate
12 sourced measures, clear differences, and reference years you can check.
At a glance. Iwate has the larger population in the 2024 estimates. Iwate has the larger total area. Population and area are rounded in the official source.
The comparison
How the figures differ
| Measure | Yamagata ↗ | Iwate ↗ | Absolute difference | Higher figure |
|---|---|---|---|---|
| Population ↗thousand people · 2024 | 1,011 | 1,145 | 134 | Iwate |
| Total area ↗km² · 2024 | 9,323 | 15,275 | 5,952 | Iwate |
| Population density ↗people/km² · 2024 | 108 | 75 | 33 | Yamagata |
| Inhabitable area ↗km² · 2024 | 2,873 | 3,751 | 878 | Iwate |
| Inhabitable area density ↗people/km² · 2024 | 352 | 305 | 47 | Yamagata |
| Population aged 0–14 ↗thousand people · 2024 | 105 | 115 | 10 | Iwate |
| Population aged 15–64 ↗thousand people · 2024 | 546 | 624 | 78 | Iwate |
| Population aged 65+ ↗thousand people · 2024 | 360 | 405 | 45 | Iwate |
| Private households ↗households · 2020 | 396,792 | 490,828 | 94,036 | Iwate |
| Members per household ↗people · 2020 | 2.61 | 2.39 | 0.22 | Yamagata |
| Live birth rate ↗per 1,000 people · 2023 | 5.1 | 4.7 | 0.4 | Yamagata |
| Death rate ↗per 1,000 people · 2023 | 16.7 | 17 | 0.3 | Iwate |
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: Yamagata's population is 0.88× Iwate's.
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Related story. 2020 census: household size in Yamagata vs Iwate →
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 →