日本人口减少模拟器

Ehime愛媛県

Seiyo 西予市

Data last updated:

2020年

(实际)

35,411人

2030年

(预测)

28,848人

▼ -18.5%

2040年

(预测)

23,128人

▼ -34.7%

2050年

(预测)

18,200人

▼ -48.6%

老龄化率（65岁以上）: 2020年 44.1%→2050年 54%

Ehime (愛媛県)的其他市区町村

Matsuyama松山市Imabari今治市Uwajima宇和島市Yawatahama八幡浜市Niihama新居浜市Saijou西条市Oozu大洲市Iyo伊予市Shikokuchuuou四国中央市Touon東温市Kamijima上島町Kumakougen久万高原町Masaki松前町Tobe砥部町Uchiko内子町Ikata伊方町Matsuno松野町Kihoku鬼北町Ainan愛南町
查看Ehime (愛媛県)的所有市区町村 →

数据来源

  • 日本政府统计综合窗口(e-Stat)（https://www.e-stat.go.jp/）
  • 国立社会保障・人口问题研究所「日本地区别未来推计人口（令和5年推计）」

※本服务使用e-Stat的API功能，但服务内容不受日本政府保证。

About Seiyo

Overview

Seiyo (西予市) is a municipality in Ehime, Japan, with a population of 35,411 as of 2020.

Population Projection

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Seiyo's population is expected to reach 28,848 by 2030 (-18.5%), 23,128 by 2040 (-34.7%), and 18,200 by 2050 (-48.6%). A significant population decline is projected over the next three decades.

Aging Outlook

The aging rate (percentage of residents aged 65 and over) is 44.1% as of 2020 and is projected to rise to 54.0% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.

National Comparison

Seiyo is experiencing one of the faster rates of population decline in Japan.

Frequently Asked Questions

Q.What is the current population of Seiyo, Ehime?
A.According to the 2020 national census, Seiyo has a population of 35,411.
Q.What is the projected population of Seiyo in the future?
A.According to IPSS projections, Seiyo's population is expected to be 28,848 in 2030, 23,128 in 2040, and 18,200 in 2050.
Q.What is the population decline rate of Seiyo?
A.Over the 30 years from 2020 to 2050, Seiyo's population is projected to change by -48.6%. The 10-year change is -18.5% and the 20-year change is -34.7%.
Q.What is the aging rate of Seiyo?
A.Seiyo's aging rate (percentage aged 65 and over) is 44.1% as of 2020, projected to rise to 54.0% by 2050.
Q.Where does this population data come from?
A.Historical data is sourced from Japan's national census via the e-Stat API (Statistics Bureau of Japan). Future projections are from the National Institute of Population and Social Security Research (IPSS) "Regional Population Projections 2023".
Q.Is the data up to date?
A.Historical data uses the 2020 national census results. Future projections use the IPSS 2023 edition. Data will be updated as new census results become available.

Municipalities with Similar Trends

Aomori Oowani大鰐町
▼ -58.0%
Gifu Hichisou七宗町
▼ -58.1%
Akita Gojoume五城目町
▼ -58.2%
Gifu Shirakawa白川町
▼ -58.2%
Miyagi Minamisanriku南三陸町
▼ -58.3%
Fukushima Samegawa鮫川村
▼ -58.3%

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