Wakayama和歌山県
Taiji 太地町
Data last updated:
Taiji, Wakayama, Japan has a population of 2,678 (2025 national census). IPSS projections estimate 2,417 by 2030 and 1,601 by 2050 (a decrease of about 42.6% from 2020), with the share of residents aged 65+ rising from 44.8% in 2020 to 59.8%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
2,678
2030
(Projection)
2,417
▼ -13.4%
2040
(Projection)
2,012
▼ -27.9%
2050
(Projection)
1,601
▼ -42.6%
Change vs. 2020 census
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Other municipalities in Wakayama (和歌山県)
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.
Taiji 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 | 4,539 | ▲ +62.6% | Census |
| 1985 | 4,314 | ▲ +54.6% | Census |
| 1990 | 4,098 | ▲ +46.8% | Census |
| 1995 | 3,907 | ▲ +40.0% | Census |
| 2000 | 3,777 | ▲ +35.3% | Census |
| 2005 | 3,506 | ▲ +25.6% | Census |
| 2010 | 3,250 | ▲ +16.4% | Census |
| 2015 | 3,087 | ▲ +10.6% | Census |
| 2020 | 2,791 | — | Census |
| 2025 | 2,678 | ▼ -4.0% | Census |
| 2030 | 2,417 | ▼ -13.4% | Projection |
| 2035 | 2,216 | ▼ -20.6% | Projection |
| 2040 | 2,012 | ▼ -27.9% | Projection |
| 2045 | 1,797 | ▼ -35.6% | Projection |
| 2050 | 1,601 | ▼ -42.6% | Projection |
About Taiji
Overview
Taiji (太地町) is a municipality in Wakayama, Japan, with a population of 2,678 as of 2025.
Population Projection of Taiji
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Taiji's population is expected to reach 2,417 by 2030 (-13.4%), 2,012 by 2040 (-27.9%), and 1,601 by 2050 (-42.6%). A significant population decline is projected over the next three decades.
Aging Rate of Taiji
The aging rate (percentage of residents aged 65 and over) is 44.8% as of 2020 and is projected to rise to 59.8% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Taiji is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #625 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #116 out of 1903 nationwide.
- Population size: Ranked #1751 out of 1917 nationwide.
- Related: National rankings / All municipalities in Wakayama
Earnings in Wakayama (和歌山県): Average salary in Wakayama (和歌山県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure