日本人口减少模拟器

Kochi高知県

Kuroshio 黒潮町

Data last updated:

Kuroshio, Kochi, Japan has a population of 8,990 (2025 national census). IPSS projections estimate 8,360 by 2030 and 4,971 by 2050 (a decrease of about 51.6% from 2020), with the share of residents aged 65+ rising from 45.0% in 2020 to 56.1%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年

(实际)

8,990人

2030年

(预测)

8,360人

▼ -18.5%

2040年

(预测)

6,567人

▼ -36.0%

2050年

(预测)

4,971人

▼ -51.6%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 45%→2050年 56.1%

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岁

Kochi (高知県)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。

Kuroshio 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
198016,116▲ +57.0%Census
198516,009▲ +56.0%Census
199015,395▲ +50.0%Census
199515,024▲ +46.4%Census
200014,208▲ +38.5%Census
200513,437▲ +30.9%Census
201012,366▲ +20.5%Census
201511,217▲ +9.3%Census
202010,262—Census
20258,990▼ -12.4%Census
20308,360▼ -18.5%Projection
20357,456▼ -27.3%Projection
20406,567▼ -36.0%Projection
20455,736▼ -44.1%Projection
20504,971▼ -51.6%Projection

About Kuroshio

Overview

Kuroshio (黒潮町) is a municipality in Kochi, Japan, with a population of 8,990 as of 2025.

Population Projection of Kuroshio

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Kuroshio's population is expected to reach 8,360 by 2030 (-18.5%), 6,567 by 2040 (-36.0%), and 4,971 by 2050 (-51.6%). The town is projected to lose more than half its population over 30 years.

Aging Rate of Kuroshio

The aging rate (percentage of residents aged 65 and over) is 45.0% as of 2020 and is projected to rise to 56.1% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #275 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #235 out of 1903 nationwide.
  • Population size: Ranked #1393 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Kochi

Kochi (高知県)的收入水平: Kochi (高知県)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 Kuroshio, Kochi?
A.According to the 2025 national census, Kuroshio has a population of 8,990.
Q.What is the population of Kuroshio in 2026?
A.Kuroshio's population in 2026 is estimated at approximately 8,864. This is an interpolated reference value between the 2025 census (8,990) and the IPSS projection for 2030 (8,360).
Q.What is the projected population of Kuroshio in the future?
A.According to IPSS projections, Kuroshio's population is expected to be 8,360 in 2030, 6,567 in 2040, and 4,971 in 2050.
Q.What is the population decline rate of Kuroshio?
A.Over the 30 years from 2020 to 2050, Kuroshio's population is projected to change by -51.6%. The 10-year change is -18.5% and the 20-year change is -36.0%.
Q.Why is the population of Kuroshio 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 Kuroshio, the share of residents aged 65+ is projected to rise from 45.0% to 56.1% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Kuroshio?
A.Kuroshio's aging rate (percentage aged 65 and over) is 45.0% as of 2020, projected to rise to 56.1% 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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