日本人口减少模拟器

Tokyo東京都

Katsushika 葛飾区

Data last updated:

Katsushika, Tokyo, Japan has a population of 467,267 (2025 national census). IPSS projections estimate 457,654 by 2030 and 451,040 by 2050 (a decrease of about 0.5% from 2020), with the share of residents aged 65+ rising from 25.1% in 2020 to 31.0%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年实际

467,267人

2030年预测

457,654人

▲ +1.0%

2040年预测

456,775人

▲ +0.8%

2050年预测

451,040人

▼ -0.5%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 25.1%→2050年 31%

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岁

Tokyo (東京都)的其他市区町村

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。

Katsushika Population Table (1980–2050)

Population by year: national census results (restated to current municipal boundaries) and IPSS (2023) projections based on the 2020 census.

YearPopulationvs 2020Type
1980420,187▼ -7.3%Census
1985419,017▼ -7.5%Census
1990424,801▼ -6.2%Census
1995424,478▼ -6.3%Census
2000421,519▼ -7.0%Census
2005424,878▼ -6.2%Census
2010442,586▼ -2.3%Census
2015442,913▼ -2.2%Census
2020453,093—Census
2025467,267▲ +3.1%Census
2030457,654▲ +1.0%Projection
2035457,742▲ +1.0%Projection
2040456,775▲ +0.8%Projection
2045454,563▲ +0.3%Projection
2050451,040▼ -0.5%Projection

About Katsushika

Overview

Katsushika (葛飾区) is a municipality in Tokyo, Japan, with a population of 467,267 as of 2025.

Population Projection of Katsushika

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Katsushika's population is expected to reach 457,654 by 2030 (+1.0%), 456,775 by 2040 (+0.8%), and 451,040 by 2050 (-0.5%). A modest population change is expected.

Aging Rate of Katsushika

The aging rate (percentage of residents aged 65 and over) is 25.1% as of 2020 and is projected to rise to 31.0% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

Katsushika's demographic trajectory is similar to the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #1791 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1809 out of 1903 nationwide.
  • Population size: Ranked #42 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Tokyo

Tokyo (東京都)的收入水平: Tokyo (東京都)的平均年收入(按年龄、性别、企业规模)jpsalary / 厚生劳动省 工资结构基本统计调查

Frequently Asked Questions

Q.What is the current population of Katsushika, Tokyo?
A.According to the 2025 national census, Katsushika has a population of 467,267.
Q.What is the population of Katsushika in 2026?
A.Katsushika's population in 2026 is estimated at approximately 465,344. This is an interpolated reference value between the 2025 census (467,267) and the IPSS projection for 2030 (457,654).
Q.What is the projected population of Katsushika in the future?
A.According to IPSS projections, Katsushika's population is expected to be 457,654 in 2030, 456,775 in 2040, and 451,040 in 2050.
Q.What is the population decline rate of Katsushika?
A.Over the 30 years from 2020 to 2050, Katsushika's population is projected to change by -0.5%. The 10-year change is +1.0% and the 20-year change is +0.8%.
Q.Why is the population of Katsushika declining?
A.Nationwide, Japan's population decline is driven by natural decrease (deaths exceeding births) and, in regional municipalities, by net out-migration of young people to major metropolitan areas. In Katsushika, the share of residents aged 65+ is projected to rise from 25.1% to 31.0% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Katsushika?
A.Katsushika's aging rate (percentage aged 65 and over) is 25.1% as of 2020, projected to rise to 31.0% 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 national census results through 2025. Future projections use the IPSS 2023 edition, which is based on the 2020 census.

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