日本人口减少模拟器

Chiba千葉県

Tomisato 富里市

Data last updated:

Tomisato, Chiba, Japan has a population of 49,659 (2025 national census). IPSS projections estimate 47,610 by 2030 and 40,574 by 2050 (a decrease of about 18.4% from 2020), with the share of residents aged 65+ rising from 28.3% in 2020 to 36.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年

(实际)

49,659人

2030年

(预测)

47,610人

▼ -4.3%

2040年

(预测)

44,243人

▼ -11.0%

2050年

(预测)

40,574人

▼ -18.4%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 28.3%→2050年 36.9%

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岁

Chiba (千葉県)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。

Tomisato 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
198023,315▼ -53.1%Census
198533,291▼ -33.1%Census
199042,852▼ -13.8%Census
199548,666▼ -2.1%Census
200050,176▲ +0.9%Census
200551,370▲ +3.3%Census
201051,087▲ +2.7%Census
201549,636▼ -0.2%Census
202049,735—Census
202549,659▼ -0.2%Census
203047,610▼ -4.3%Projection
203546,048▼ -7.4%Projection
204044,243▼ -11.0%Projection
204542,345▼ -14.9%Projection
205040,574▼ -18.4%Projection

About Tomisato

Overview

Tomisato (富里市) is a municipality in Chiba, Japan, with a population of 49,659 as of 2025.

Population Projection of Tomisato

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Tomisato's population is expected to reach 47,610 by 2030 (-4.3%), 44,243 by 2040 (-11.0%), and 40,574 by 2050 (-18.4%). A modest population change is expected.

Aging Rate of Tomisato

The aging rate (percentage of residents aged 65 and over) is 28.3% as of 2020 and is projected to rise to 36.9% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #1389 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1481 out of 1903 nationwide.
  • Population size: Ranked #681 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Chiba

Chiba (千葉県)的收入水平: Chiba (千葉県)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 Tomisato, Chiba?
A.According to the 2025 national census, Tomisato has a population of 49,659.
Q.What is the population of Tomisato in 2026?
A.Tomisato's population in 2026 is estimated at approximately 49,249. This is an interpolated reference value between the 2025 census (49,659) and the IPSS projection for 2030 (47,610).
Q.What is the projected population of Tomisato in the future?
A.According to IPSS projections, Tomisato's population is expected to be 47,610 in 2030, 44,243 in 2040, and 40,574 in 2050.
Q.What is the population decline rate of Tomisato?
A.Over the 30 years from 2020 to 2050, Tomisato's population is projected to change by -18.4%. The 10-year change is -4.3% and the 20-year change is -11.0%.
Q.Why is the population of Tomisato 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 Tomisato, the share of residents aged 65+ is projected to rise from 28.3% to 36.9% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Tomisato?
A.Tomisato's aging rate (percentage aged 65 and over) is 28.3% as of 2020, projected to rise to 36.9% 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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