Chiba population pyramid 2045
- Population
- 5.8 million
- Aged 0–14
- 10.2%
- Aged 15–64
- 55.1%
- Aged 65+
- 34.8%
- Aged 75+
- 19.5%
- vs 2020
- -7.3%
Population by sex and five-year age group (men left, women right). The axis is fixed across 2020–2050 so years can be compared.
Chiba at a glance
In 2045 the population of Chiba is projected to be 5.8 million: 10.2% aged 0–14, 55.1% aged 15–64 and 34.8% aged 65 and over (19.5% aged 75+).
From 6.3 million in 2020 it is projected to shrink by 9.5% to 5.7 million in 2050; the share aged 65+ rises from 27.6% to 35.5%.
Among the 47 prefectures, it ranks 6th largest by population in 2045, 4th smallest by the size of the decline from 2020 to 2050, and 6th lowest by the share aged 65+ in 2050.
The future of Chiba, compared
| 2020 | 2050 | Change | 65+ (2020) | 65+ (2050) | 0–14 (2050) | |
|---|---|---|---|---|---|---|
| Chiba | 6.3 million | 5.7 million | -9.5% | 27.6% | 35.5% | 9.9% |
| Japan | 126.1 million | 104.7 million | -17.0% | 28.6% | 37.1% | 9.9% |
Trends 2020–2050
Population
Share aged 65+ (%)
Municipalities of Chiba
Municipality pages are in Japanese.
| Municipality | 2020 | 2050 | Change | 65+ (2050) |
|---|---|---|---|---|
| 千葉市 | 974,951 | 897,073 | -8.0% | 36.0% |
| 千葉市中央区 | 211,736 | 213,863 | +1.0% | 32.4% |
| 千葉市花見川区 | 177,328 | 151,747 | -14.4% | 36.9% |
| 千葉市稲毛区 | 160,582 | 152,564 | -5.0% | 35.9% |
| 千葉市若葉区 | 146,940 | 123,954 | -15.6% | 40.2% |
| 千葉市緑区 | 129,421 | 127,507 | -1.5% | 35.8% |
| 千葉市美浜区 | 148,944 | 127,438 | -14.4% | 37.6% |
| 銚子市 | 58,431 | 28,770 | -50.8% | 52.5% |
| 市川市 | 496,676 | 483,307 | -2.7% | 30.6% |
| 船橋市 | 642,907 | 651,603 | +1.4% | 31.5% |
| 館山市 | 45,153 | 30,710 | -32.0% | 49.9% |
| 木更津市 | 136,166 | 133,860 | -1.7% | 33.8% |
| 松戸市 | 498,232 | 476,057 | -4.5% | 34.5% |
| 野田市 | 152,638 | 131,593 | -13.8% | 37.8% |
| 茂原市 | 86,782 | 63,935 | -26.3% | 45.7% |
| 成田市 | 132,906 | 127,821 | -3.8% | 32.8% |
| 佐倉市 | 168,743 | 135,752 | -19.6% | 41.0% |
| 東金市 | 58,219 | 43,866 | -24.7% | 42.4% |
| 旭市 | 63,745 | 45,570 | -28.5% | 40.9% |
| 習志野市 | 176,197 | 175,271 | -0.5% | 31.7% |
| 柏市 | 426,468 | 435,479 | +2.1% | 32.9% |
| 勝浦市 | 16,927 | 8,815 | -47.9% | 54.1% |
| 市原市 | 269,524 | 207,507 | -23.0% | 39.0% |
| 流山市 | 199,849 | 241,539 | +20.9% | 28.8% |
| 八千代市 | 199,498 | 195,520 | -2.0% | 34.2% |
| 我孫子市 | 130,510 | 112,074 | -14.1% | 40.5% |
| 鴨川市 | 32,116 | 22,407 | -30.2% | 42.7% |
| 鎌ケ谷市 | 109,932 | 103,245 | -6.1% | 36.8% |
| 君津市 | 82,206 | 54,982 | -33.1% | 43.7% |
| 富津市 | 42,465 | 24,286 | -42.8% | 50.5% |
| 浦安市 | 171,362 | 163,769 | -4.4% | 28.7% |
| 四街道市 | 93,576 | 89,822 | -4.0% | 34.4% |
| 袖ケ浦市 | 63,883 | 62,246 | -2.6% | 33.7% |
| 八街市 | 67,455 | 42,276 | -37.3% | 50.0% |
| 印西市 | 102,609 | 119,819 | +16.8% | 31.8% |
| 白井市 | 62,441 | 55,915 | -10.5% | 39.9% |
| 富里市 | 49,735 | 40,574 | -18.4% | 36.9% |
| 南房総市 | 35,831 | 19,201 | -46.4% | 57.6% |
| 匝瑳市 | 35,040 | 20,643 | -41.1% | 51.5% |
| 香取市 | 72,356 | 40,605 | -43.9% | 51.3% |
| 山武市 | 48,444 | 27,339 | -43.6% | 53.9% |
| いすみ市 | 35,544 | 20,218 | -43.1% | 58.0% |
| 大網白里市 | 48,129 | 37,560 | -22.0% | 44.8% |
| 酒々井町 | 20,745 | 15,329 | -26.1% | 40.7% |
| 栄町 | 20,127 | 10,885 | -45.9% | 55.5% |
| 神崎町 | 5,816 | 3,697 | -36.4% | 51.8% |
| 多古町 | 13,735 | 8,018 | -41.6% | 48.0% |
| 東庄町 | 13,228 | 6,895 | -47.9% | 52.4% |
| 九十九里町 | 14,639 | 7,210 | -50.7% | 59.2% |
| 芝山町 | 7,033 | 4,148 | -41.0% | 54.7% |
| 横芝光町 | 22,075 | 13,382 | -39.4% | 48.9% |
| 一宮町 | 11,897 | 11,291 | -5.1% | 41.2% |
| 睦沢町 | 6,760 | 4,108 | -39.2% | 49.2% |
| 長生村 | 13,803 | 9,847 | -28.7% | 48.2% |
| 白子町 | 10,305 | 5,779 | -43.9% | 54.7% |
| 長柄町 | 6,721 | 3,378 | -49.7% | 63.0% |
| 長南町 | 7,198 | 3,192 | -55.7% | 62.6% |
| 大多喜町 | 8,885 | 4,498 | -49.4% | 57.0% |
| 御宿町 | 6,874 | 4,381 | -36.3% | 67.3% |
| 鋸南町 | 6,993 | 3,089 | -55.8% | 58.8% |
Municipalities of Chiba 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.