Kochi高知県
Nankoku 南国市
Data last updated:
Nankoku, Kochi, Japan has a population of 45,359 (2025 national census). IPSS projections estimate 42,718 by 2030 and 33,108 by 2050 (a decrease of about 29.1% from 2020), with the share of residents aged 65+ rising from 32.1% in 2020 to 42.6%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025年实际
45,359人
2030年预测
42,718人
▼ -8.5%
2040年预测
38,120人
▼ -18.3%
2050年预测
33,108人
▼ -29.1%
Change vs. 2020 census
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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。
Nankoku Population Table (1980–2050)
Population by year: national census results (restated to current municipal boundaries) and IPSS (2023) projections based on the 2020 census.
| Year | Population | vs 2020 | Type |
|---|---|---|---|
| 1980 | 44,866 | ▼ -3.9% | Census |
| 1985 | 47,554 | ▲ +1.9% | Census |
| 1990 | 46,823 | ▲ +0.3% | Census |
| 1995 | 48,192 | ▲ +3.3% | Census |
| 2000 | 49,965 | ▲ +7.1% | Census |
| 2005 | 50,758 | ▲ +8.8% | Census |
| 2010 | 49,472 | ▲ +6.0% | Census |
| 2015 | 47,982 | ▲ +2.8% | Census |
| 2020 | 46,664 | — | Census |
| 2025 | 45,359 | ▼ -2.8% | Census |
| 2030 | 42,718 | ▼ -8.5% | Projection |
| 2035 | 40,516 | ▼ -13.2% | Projection |
| 2040 | 38,120 | ▼ -18.3% | Projection |
| 2045 | 35,583 | ▼ -23.7% | Projection |
| 2050 | 33,108 | ▼ -29.1% | Projection |
About Nankoku
Overview
Nankoku (南国市) is a municipality in Kochi, Japan, with a population of 45,359 as of 2025.
Population Projection of Nankoku
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Nankoku's population is expected to reach 42,718 by 2030 (-8.5%), 38,120 by 2040 (-18.3%), and 33,108 by 2050 (-29.1%). A significant population decline is projected over the next three decades.
Aging Rate of Nankoku
The aging rate (percentage of residents aged 65 and over) is 32.1% as of 2020 and is projected to rise to 42.6% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Nankoku's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1089 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1050 out of 1903 nationwide.
- Population size: Ranked #722 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