日本人口减少模拟器

Kagawa香川県

Miki 三木町

Data last updated:

Miki, Kagawa, Japan has a population of 25,759 (2025 national census). IPSS projections estimate 25,045 by 2030 and 20,723 by 2050 (a decrease of about 22.9% from 2020), with the share of residents aged 65+ rising from 31.5% in 2020 to 39.3%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年实际

25,759人

2030年预测

25,045人

▼ -6.8%

2040年预测

22,941人

▼ -14.6%

2050年预测

20,723人

▼ -22.9%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 31.5%→2050年 39.3%

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岁

Kagawa (香川県)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。

Miki 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
198024,989▼ -7.0%Census
198526,021▼ -3.2%Census
199026,966▲ +0.3%Census
199527,766▲ +3.3%Census
200028,769▲ +7.0%Census
200528,790▲ +7.1%Census
201028,464▲ +5.9%Census
201527,684▲ +3.0%Census
202026,878—Census
202525,759▼ -4.2%Census
203025,045▼ -6.8%Projection
203524,030▼ -10.6%Projection
204022,941▼ -14.6%Projection
204521,833▼ -18.8%Projection
205020,723▼ -22.9%Projection

About Miki

Overview

Miki (三木町) is a municipality in Kagawa, Japan, with a population of 25,759 as of 2025.

Population Projection of Miki

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Miki's population is expected to reach 25,045 by 2030 (-6.8%), 22,941 by 2040 (-14.6%), and 20,723 by 2050 (-22.9%). A significant population decline is projected over the next three decades.

Aging Rate of Miki

The aging rate (percentage of residents aged 65 and over) is 31.5% as of 2020 and is projected to rise to 39.3% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

Miki's population decline rate exceeds the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #1264 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1315 out of 1903 nationwide.
  • Population size: Ranked #975 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Kagawa

Kagawa (香川県)的收入水平: Kagawa (香川県)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 Miki, Kagawa?
A.According to the 2025 national census, Miki has a population of 25,759.
Q.What is the population of Miki in 2026?
A.Miki's population in 2026 is estimated at approximately 25,616. This is an interpolated reference value between the 2025 census (25,759) and the IPSS projection for 2030 (25,045).
Q.What is the projected population of Miki in the future?
A.According to IPSS projections, Miki's population is expected to be 25,045 in 2030, 22,941 in 2040, and 20,723 in 2050.
Q.What is the population decline rate of Miki?
A.Over the 30 years from 2020 to 2050, Miki's population is projected to change by -22.9%. The 10-year change is -6.8% and the 20-year change is -14.6%.
Q.Why is the population of Miki 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 Miki, the share of residents aged 65+ is projected to rise from 31.5% to 39.3% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Miki?
A.Miki's aging rate (percentage aged 65 and over) is 31.5% as of 2020, projected to rise to 39.3% 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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