2020 · 47 prefectures
Members per household ranking
Average members per private household in the 2020 Population Census.
Highest to lowest
Unit: peopleAll prefectures
| Rank | Prefecture | Vs. prefecture average | |
|---|---|---|---|
| 01 | Yamagata | 2.61 | +13.2% |
| 02 | Fukui | 2.57 | +11.4% |
| 03 | Saga | 2.51 | +9.0% |
| 04 | Toyama | 2.5 | +8.5% |
| 05 | Gifu | 2.49 | +7.9% |
| 06 | Niigata | 2.48 | +7.7% |
| 07 | Tottori | 2.44 | +6.1% |
| 08 | Shiga | 2.44 | +5.8% |
| 09 | Fukushima | 2.42 | +4.9% |
| 10 | Akita | 2.41 | +4.5% |
| 11 | Nagano | 2.41 | +4.5% |
| 12 | Shimane | 2.4 | +4.3% |
| 13 | Shizuoka | 2.4 | +4.1% |
| 14 | Iwate | 2.39 | +3.8% |
| 15 | Tochigi | 2.38 | +3.2% |
| 16 | Nara | 2.38 | +3.2% |
| 17 | Ibaraki | 2.37 | +3.0% |
| 18 | Gunma | 2.35 | +1.9% |
| 19 | Kumamoto | 2.34 | +1.7% |
| 20 | Ishikawa | 2.34 | +1.6% |
| 21 | Aomori | 2.34 | +1.5% |
| 22 | Yamanashi | 2.34 | +1.4% |
| 23 | Okinawa | 2.33 | +1.2% |
| 24 | Mie | 2.33 | +1.2% |
| 25 | Okayama | 2.3 | -0.3% |
| 26 | Miyagi | 2.3 | -0.3% |
| 27 | Aichi | 2.29 | -0.5% |
| 28 | Saitama | 2.28 | -1.0% |
| 29 | Wakayama | 2.28 | -1.1% |
| 30 | Kagawa | 2.27 | -1.6% |
| 31 | Nagasaki | 2.27 | -1.7% |
| 32 | Tokushima | 2.26 | -2.1% |
| 33 | Hyogo | 2.23 | -3.1% |
| 34 | Chiba | 2.23 | -3.3% |
| 35 | Oita | 2.22 | -3.7% |
| 36 | Miyazaki | 2.2 | -4.6% |
| 37 | Hiroshima | 2.2 | -4.7% |
| 38 | Yamaguchi | 2.17 | -6.0% |
| 39 | Ehime | 2.16 | -6.3% |
| 40 | Kanagawa | 2.15 | -6.6% |
| 41 | Fukuoka | 2.15 | -6.7% |
| 42 | Kyoto | 2.12 | -7.9% |
| 43 | Kochi | 2.11 | -8.3% |
| 44 | Kagoshima | 2.11 | -8.6% |
| 45 | Osaka | 2.1 | -8.9% |
| 46 | Hokkaido | 2.04 | -11.5% |
| 47 | Tokyo | 1.92 | -16.8% |
The comparison column uses the unweighted mean of the 47 prefectures (2.3 people), not Japan's aggregate rate. Sort the value column to reverse the order.
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Source. Japan Statistical Yearbook 2026, Table 2-15, Statistics Bureau, Ministry of Internal Affairs and Communications, Japan. Reference year: 2020. Snapshot reviewed 2026-10-08. More on this data →
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