Ibaraki population pyramid 2025
- Population
- 2.8 million
- Aged 0–14
- 10.6%
- Aged 15–64
- 58.0%
- Aged 65+
- 31.4%
- Aged 75+
- 17.9%
- vs 2020
- -2.9%
Population by sex and five-year age group (men left, women right). The axis is fixed across 2020–2050 so years can be compared.
Ibaraki at a glance
In 2025 the population of Ibaraki is projected to be 2.8 million: 10.6% aged 0–14, 58.0% aged 15–64 and 31.4% aged 65 and over (17.9% aged 75+).
From 2.9 million in 2020 it is projected to shrink by 21.7% to 2.2 million in 2050; the share aged 65+ rises from 29.7% to 40.0%.
Among the 47 prefectures, it ranks 11th largest by population in 2025, 17th smallest by the size of the decline from 2020 to 2050, and 24th highest by the share aged 65+ in 2050.
The future of Ibaraki, compared
| 2020 | 2050 | Change | 65+ (2020) | 65+ (2050) | 0–14 (2050) | |
|---|---|---|---|---|---|---|
| Ibaraki | 2.9 million | 2.2 million | -21.7% | 29.7% | 40.0% | 9.2% |
| Japan | 126.1 million | 104.7 million | -17.0% | 28.6% | 37.1% | 9.9% |
Trends 2020–2050
Population
Share aged 65+ (%)
Municipalities of Ibaraki
Municipality pages are in Japanese.
| Municipality | 2020 | 2050 | Change | 65+ (2050) |
|---|---|---|---|---|
| 水戸市 | 270,685 | 243,760 | -9.9% | 36.6% |
| 日立市 | 174,508 | 104,391 | -40.2% | 48.7% |
| 土浦市 | 142,074 | 118,991 | -16.2% | 39.0% |
| 古河市 | 139,344 | 107,859 | -22.6% | 39.0% |
| 石岡市 | 73,061 | 49,199 | -32.7% | 46.9% |
| 結城市 | 50,645 | 39,431 | -22.1% | 40.2% |
| 龍ケ崎市 | 76,420 | 57,774 | -24.4% | 43.1% |
| 下妻市 | 42,521 | 30,931 | -27.3% | 41.6% |
| 常総市 | 60,834 | 44,611 | -26.7% | 41.1% |
| 常陸太田市 | 48,602 | 25,696 | -47.1% | 56.1% |
| 高萩市 | 27,699 | 14,824 | -46.5% | 52.1% |
| 北茨城市 | 41,801 | 24,023 | -42.5% | 49.5% |
| 笠間市 | 73,173 | 49,917 | -31.8% | 45.4% |
| 取手市 | 104,524 | 78,828 | -24.6% | 42.3% |
| 牛久市 | 84,651 | 77,034 | -9.0% | 38.7% |
| つくば市 | 241,656 | 256,124 | +6.0% | 30.4% |
| ひたちなか市 | 156,581 | 132,531 | -15.4% | 38.6% |
| 鹿嶋市 | 66,950 | 56,811 | -15.1% | 39.2% |
| 潮来市 | 27,604 | 16,865 | -38.9% | 46.4% |
| 守谷市 | 68,421 | 76,203 | +11.4% | 31.4% |
| 常陸大宮市 | 39,267 | 22,313 | -43.2% | 53.9% |
| 那珂市 | 53,502 | 41,710 | -22.0% | 43.5% |
| 筑西市 | 100,753 | 67,207 | -33.3% | 45.4% |
| 坂東市 | 52,265 | 36,253 | -30.6% | 41.9% |
| 稲敷市 | 39,039 | 19,170 | -50.9% | 56.5% |
| かすみがうら市 | 40,087 | 27,514 | -31.4% | 43.9% |
| 桜川市 | 39,122 | 20,487 | -47.6% | 54.2% |
| 神栖市 | 95,454 | 83,794 | -12.2% | 34.6% |
| 行方市 | 32,185 | 17,726 | -44.9% | 50.0% |
| 鉾田市 | 45,953 | 31,934 | -30.5% | 43.5% |
| つくばみらい市 | 49,872 | 56,376 | +13.0% | 31.9% |
| 小美玉市 | 48,870 | 34,656 | -29.1% | 42.5% |
| 茨城町 | 31,401 | 21,664 | -31.0% | 45.4% |
| 大洗町 | 15,715 | 9,406 | -40.1% | 46.1% |
| 城里町 | 18,097 | 9,218 | -49.1% | 58.8% |
| 東海村 | 37,891 | 33,173 | -12.5% | 36.1% |
| 大子町 | 15,736 | 6,231 | -60.4% | 63.6% |
| 美浦村 | 14,602 | 8,377 | -42.6% | 49.9% |
| 阿見町 | 48,553 | 43,596 | -10.2% | 36.9% |
| 河内町 | 8,231 | 3,897 | -52.7% | 57.6% |
| 八千代町 | 21,026 | 13,901 | -33.9% | 42.3% |
| 五霞町 | 8,093 | 4,534 | -44.0% | 54.6% |
| 境町 | 24,201 | 18,102 | -25.2% | 39.6% |
| 利根町 | 15,340 | 8,023 | -47.7% | 56.6% |
Municipalities of Ibaraki with the largest decline (2020→2050)
Related pages
Source: processed from the National Institute of Population and Social Security Research, Regional Population Projections for Japan (2023) (https://www.ipss.go.jp/pp-shicyoson/j/shicyoson23/t-page.asp). 2020 is the census; 2025 onwards are projections.