Kumamoto熊本県
Nagasu 長洲町
Data last updated:
Nagasu, Kumamoto, Japan has a population of 14,534 (2025 national census). IPSS projections estimate 13,698 by 2030 and 10,057 by 2050 (a decrease of about 34.6% from 2020), with the share of residents aged 65+ rising from 35.8% in 2020 to 39.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
14,534
2030
(Projection)
13,698
▼ -10.9%
2040
(Projection)
11,858
▼ -22.9%
2050
(Projection)
10,057
▼ -34.6%
Change vs. 2020 census
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Other municipalities in Kumamoto (熊本県)
Data Sources
- Portal Site of Official Statistics of Japan (e-Stat)（https://www.e-stat.go.jp/）
- National Institute of Population and Social Security Research (IPSS), Regional Population Projections (2023 ed.)
* This service uses the e-Stat API but its content is not guaranteed by the Japanese government.
Nagasu 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 | 16,715 | ▲ +8.7% | Census |
| 1985 | 18,126 | ▲ +17.9% | Census |
| 1990 | 17,605 | ▲ +14.5% | Census |
| 1995 | 17,833 | ▲ +16.0% | Census |
| 2000 | 17,956 | ▲ +16.8% | Census |
| 2005 | 17,381 | ▲ +13.1% | Census |
| 2010 | 16,594 | ▲ +7.9% | Census |
| 2015 | 15,889 | ▲ +3.4% | Census |
| 2020 | 15,372 | — | Census |
| 2025 | 14,534 | ▼ -5.5% | Census |
| 2030 | 13,698 | ▼ -10.9% | Projection |
| 2035 | 12,781 | ▼ -16.9% | Projection |
| 2040 | 11,858 | ▼ -22.9% | Projection |
| 2045 | 10,923 | ▼ -28.9% | Projection |
| 2050 | 10,057 | ▼ -34.6% | Projection |
About Nagasu
Overview
Nagasu (長洲町) is a municipality in Kumamoto, Japan, with a population of 14,534 as of 2025.
Population Projection of Nagasu
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Nagasu's population is expected to reach 13,698 by 2030 (-10.9%), 11,858 by 2040 (-22.9%), and 10,057 by 2050 (-34.6%). A significant population decline is projected over the next three decades.
Aging Rate of Nagasu
The aging rate (percentage of residents aged 65 and over) is 35.8% 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
Nagasu's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #908 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1277 out of 1903 nationwide.
- Population size: Ranked #1197 out of 1917 nationwide.
- Related: National rankings / All municipalities in Kumamoto
Earnings in Kumamoto (熊本県): Average salary in Kumamoto (熊本県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure