日本人口减少模拟器

Saga佐賀県

Kanzaki 神埼市

Data last updated:

Kanzaki, Saga, Japan has a population of 29,459 (2025 national census). IPSS projections estimate 28,759 by 2030 and 23,364 by 2050 (a decrease of about 24.7% from 2020), with the share of residents aged 65+ rising from 31.7% in 2020 to 39.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年实际

29,459人

2030年预测

28,759人

▼ -7.3%

2040年预测

26,154人

▼ -15.7%

2050年预测

23,364人

▼ -24.7%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 31.7%→2050年 39.9%

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岁

Saga (佐賀県)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。

Kanzaki 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
198031,815▲ +2.6%Census
198532,339▲ +4.2%Census
199032,502▲ +4.8%Census
199533,049▲ +6.5%Census
200033,648▲ +8.5%Census
200533,537▲ +8.1%Census
201032,899▲ +6.1%Census
201531,842▲ +2.6%Census
202031,022—Census
202529,459▼ -5.0%Census
203028,759▼ -7.3%Projection
203527,486▼ -11.4%Projection
204026,154▼ -15.7%Projection
204524,754▼ -20.2%Projection
205023,364▼ -24.7%Projection

About Kanzaki

Overview

Kanzaki (神埼市) is a municipality in Saga, Japan, with a population of 29,459 as of 2025.

Population Projection of Kanzaki

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Kanzaki's population is expected to reach 28,759 by 2030 (-7.3%), 26,154 by 2040 (-15.7%), and 23,364 by 2050 (-24.7%). A significant population decline is projected over the next three decades.

Aging Rate of Kanzaki

The aging rate (percentage of residents aged 65 and over) is 31.7% as of 2020 and is projected to rise to 39.9% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

Kanzaki's population decline rate exceeds the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #1218 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1276 out of 1903 nationwide.
  • Population size: Ranked #920 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Saga

Saga (佐賀県)的收入水平: Saga (佐賀県)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 Kanzaki, Saga?
A.According to the 2025 national census, Kanzaki has a population of 29,459.
Q.What is the population of Kanzaki in 2026?
A.Kanzaki's population in 2026 is estimated at approximately 29,319. This is an interpolated reference value between the 2025 census (29,459) and the IPSS projection for 2030 (28,759).
Q.What is the projected population of Kanzaki in the future?
A.According to IPSS projections, Kanzaki's population is expected to be 28,759 in 2030, 26,154 in 2040, and 23,364 in 2050.
Q.What is the population decline rate of Kanzaki?
A.Over the 30 years from 2020 to 2050, Kanzaki's population is projected to change by -24.7%. The 10-year change is -7.3% and the 20-year change is -15.7%.
Q.Why is the population of Kanzaki 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 Kanzaki, the share of residents aged 65+ is projected to rise from 31.7% to 39.9% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Kanzaki?
A.Kanzaki's aging rate (percentage aged 65 and over) is 31.7% as of 2020, projected to rise to 39.9% 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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