Kumamoto熊本県
Amakusa 天草市
Data last updated:
Amakusa, Kumamoto, Japan has a population of 68,028 (2025 national census). IPSS projections estimate 62,017 by 2030 and 39,327 by 2050 (a decrease of about 48.1% from 2020), with the share of residents aged 65+ rising from 41.2% in 2020 to 53.7%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
68,028
2030
(Projection)
62,017
▼ -18.2%
2040
(Projection)
50,185
▼ -33.8%
2050
(Projection)
39,327
▼ -48.1%
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.
Amakusa 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 | 121,574 | ▲ +60.4% | Census |
| 1985 | 118,765 | ▲ +56.7% | Census |
| 1990 | 112,068 | ▲ +47.9% | Census |
| 1995 | 107,823 | ▲ +42.3% | Census |
| 2000 | 102,907 | ▲ +35.8% | Census |
| 2005 | 96,473 | ▲ +27.3% | Census |
| 2010 | 89,065 | ▲ +17.5% | Census |
| 2015 | 82,739 | ▲ +9.2% | Census |
| 2020 | 75,783 | — | Census |
| 2025 | 68,028 | ▼ -10.2% | Census |
| 2030 | 62,017 | ▼ -18.2% | Projection |
| 2035 | 55,938 | ▼ -26.2% | Projection |
| 2040 | 50,185 | ▼ -33.8% | Projection |
| 2045 | 44,637 | ▼ -41.1% | Projection |
| 2050 | 39,327 | ▼ -48.1% | Projection |
About Amakusa
Overview
Amakusa (天草市) is a municipality in Kumamoto, Japan, with a population of 68,028 as of 2025.
Population Projection of Amakusa
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Amakusa's population is expected to reach 62,017 by 2030 (-18.2%), 50,185 by 2040 (-33.8%), and 39,327 by 2050 (-48.1%). A significant population decline is projected over the next three decades.
Aging Rate of Amakusa
The aging rate (percentage of residents aged 65 and over) is 41.2% as of 2020 and is projected to rise to 53.7% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Amakusa is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #406 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #337 out of 1903 nationwide.
- Population size: Ranked #565 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