Fukuoka福岡県
Tachiarai 大刀洗町
Data last updated:
Tachiarai, Fukuoka, Japan has a population of 15,784 (2025 national census). IPSS projections estimate 15,429 by 2030 and 13,781 by 2050 (a decrease of about 11.2% from 2020), with the share of residents aged 65+ rising from 28.0% in 2020 to 34.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
15,784
2030
(Projection)
15,429
▼ -0.6%
2040
(Projection)
14,634
▼ -5.7%
2050
(Projection)
13,781
▼ -11.2%
Change vs. 2020 census
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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.
Tachiarai 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 | 13,203 | ▼ -14.9% | Census |
| 1985 | 13,576 | ▼ -12.5% | Census |
| 1990 | 14,098 | ▼ -9.2% | Census |
| 1995 | 14,755 | ▼ -4.9% | Census |
| 2000 | 15,227 | ▼ -1.9% | Census |
| 2005 | 15,400 | ▼ -0.8% | Census |
| 2010 | 15,284 | ▼ -1.5% | Census |
| 2015 | 15,138 | ▼ -2.5% | Census |
| 2020 | 15,521 | — | Census |
| 2025 | 15,784 | ▲ +1.7% | Census |
| 2030 | 15,429 | ▼ -0.6% | Projection |
| 2035 | 15,050 | ▼ -3.0% | Projection |
| 2040 | 14,634 | ▼ -5.7% | Projection |
| 2045 | 14,209 | ▼ -8.5% | Projection |
| 2050 | 13,781 | ▼ -11.2% | Projection |
About Tachiarai
Overview
Tachiarai (大刀洗町) is a municipality in Fukuoka, Japan, with a population of 15,784 as of 2025.
Population Projection of Tachiarai
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Tachiarai's population is expected to reach 15,429 by 2030 (-0.6%), 14,634 by 2040 (-5.7%), and 13,781 by 2050 (-11.2%). A modest population change is expected.
Aging Rate of Tachiarai
The aging rate (percentage of residents aged 65 and over) is 28.0% as of 2020 and is projected to rise to 34.9% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Tachiarai's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1588 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1620 out of 1903 nationwide.
- Population size: Ranked #1166 out of 1917 nationwide.
- Related: National rankings / All municipalities in Fukuoka
Earnings in Fukuoka (福岡県): Average salary in Fukuoka (福岡県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure