Kagawa香川県
Tonoshou 土庄町
Data last updated:
Tonoshou, Kagawa, Japan has a population of 11,425 (2025 national census). IPSS projections estimate 10,524 by 2030 and 6,626 by 2050 (a decrease of about 48.4% from 2020), with the share of residents aged 65+ rising from 43.1% in 2020 to 54.0%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
11,425
2030Projection
10,524
▼ -18.1%
2040Projection
8,412
▼ -34.5%
2050Projection
6,626
▼ -48.4%
Change vs. 2020 census
Enter your age
See the population of 土庄町 when you turn 50, 60, 70 and 80.
Other municipalities in Kagawa (香川県)
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.
Tonoshou 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 | 21,398 | ▲ +66.6% | Census |
| 1985 | 20,752 | ▲ +61.5% | Census |
| 1990 | 20,191 | ▲ +57.2% | Census |
| 1995 | 19,074 | ▲ +48.5% | Census |
| 2000 | 17,711 | ▲ +37.9% | Census |
| 2005 | 16,411 | ▲ +27.8% | Census |
| 2010 | 15,123 | ▲ +17.7% | Census |
| 2015 | 14,002 | ▲ +9.0% | Census |
| 2020 | 12,846 | — | Census |
| 2025 | 11,425 | ▼ -11.1% | Census |
| 2030 | 10,524 | ▼ -18.1% | Projection |
| 2035 | 9,450 | ▼ -26.4% | Projection |
| 2040 | 8,412 | ▼ -34.5% | Projection |
| 2045 | 7,473 | ▼ -41.8% | Projection |
| 2050 | 6,626 | ▼ -48.4% | Projection |
About Tonoshou
Overview
Tonoshou (土庄町) is a municipality in Kagawa, Japan, with a population of 11,425 as of 2025.
Population Projection of Tonoshou
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Tonoshou's population is expected to reach 10,524 by 2030 (-18.1%), 8,412 by 2040 (-34.5%), and 6,626 by 2050 (-48.4%). A significant population decline is projected over the next three decades.
Aging Rate of Tonoshou
The aging rate (percentage of residents aged 65 and over) is 43.1% as of 2020 and is projected to rise to 54.0% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Tonoshou is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #397 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #327 out of 1903 nationwide.
- Population size: Ranked #1300 out of 1917 nationwide.
- Related: National rankings / All municipalities in Kagawa
Earnings in Kagawa (香川県): Average salary in Kagawa (香川県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure