Oita大分県
Tsukumi 津久見市
Data last updated:
Tsukumi, Oita, Japan has a population of 14,047 (2025 national census). IPSS projections estimate 12,381 by 2030 and 6,800 by 2050 (a decrease of about 57.8% from 2020), with the share of residents aged 65+ rising from 45.0% in 2020 to 57.0%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025年
(实际)
14,047人
2030年
(预测)
12,381人
▼ -23.1%
2040年
(预测)
9,342人
▼ -42.0%
2050年
(预测)
6,800人
▼ -57.8%
Change vs. 2020 census
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Oita (大分県)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。
Tsukumi 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 | 30,454 | ▲ +89.2% | Census |
| 1985 | 28,836 | ▲ +79.1% | Census |
| 1990 | 26,797 | ▲ +66.4% | Census |
| 1995 | 24,848 | ▲ +54.3% | Census |
| 2000 | 23,164 | ▲ +43.9% | Census |
| 2005 | 21,456 | ▲ +33.3% | Census |
| 2010 | 19,917 | ▲ +23.7% | Census |
| 2015 | 17,969 | ▲ +11.6% | Census |
| 2020 | 16,100 | — | Census |
| 2025 | 14,047 | ▼ -12.8% | Census |
| 2030 | 12,381 | ▼ -23.1% | Projection |
| 2035 | 10,792 | ▼ -33.0% | Projection |
| 2040 | 9,342 | ▼ -42.0% | Projection |
| 2045 | 7,987 | ▼ -50.4% | Projection |
| 2050 | 6,800 | ▼ -57.8% | Projection |
About Tsukumi
Overview
Tsukumi (津久見市) is a municipality in Oita, Japan, with a population of 14,047 as of 2025.
Population Projection of Tsukumi
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Tsukumi's population is expected to reach 12,381 by 2030 (-23.1%), 9,342 by 2040 (-42.0%), and 6,800 by 2050 (-57.8%). The town is projected to lose more than half its population over 30 years.
Aging Rate of Tsukumi
The aging rate (percentage of residents aged 65 and over) is 45.0% as of 2020 and is projected to rise to 57.0% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Tsukumi is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #105 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #202 out of 1903 nationwide.
- Population size: Ranked #1212 out of 1917 nationwide.
- Related: National rankings / All municipalities in Oita
Oita (大分県)的收入水平: Oita (大分県)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