Kagawa香川県
Sanuki さぬき市
Data last updated:
Sanuki, Kagawa, Japan has a population of 42,523 (2025 national census). IPSS projections estimate 40,458 by 2030 and 27,741 by 2050 (a decrease of about 41.0% from 2020), with the share of residents aged 65+ rising from 37.3% in 2020 to 49.6%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
42,523
2030Projection
40,458
▼ -13.9%
2040Projection
33,931
▼ -27.8%
2050Projection
27,741
▼ -41.0%
Change vs. 2020 census
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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.
Sanuki 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 | 55,576 | ▲ +18.2% | Census |
| 1985 | 57,152 | ▲ +21.6% | Census |
| 1990 | 57,604 | ▲ +22.6% | Census |
| 1995 | 58,390 | ▲ +24.2% | Census |
| 2000 | 57,772 | ▲ +22.9% | Census |
| 2005 | 55,754 | ▲ +18.6% | Census |
| 2010 | 53,000 | ▲ +12.8% | Census |
| 2015 | 50,272 | ▲ +7.0% | Census |
| 2020 | 47,003 | — | Census |
| 2025 | 42,523 | ▼ -9.5% | Census |
| 2030 | 40,458 | ▼ -13.9% | Projection |
| 2035 | 37,186 | ▼ -20.9% | Projection |
| 2040 | 33,931 | ▼ -27.8% | Projection |
| 2045 | 30,732 | ▼ -34.6% | Projection |
| 2050 | 27,741 | ▼ -41.0% | Projection |
About Sanuki
Overview
Sanuki (さぬき市) is a municipality in Kagawa, Japan, with a population of 42,523 as of 2025.
Population Projection of Sanuki
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Sanuki's population is expected to reach 40,458 by 2030 (-13.9%), 33,931 by 2040 (-27.8%), and 27,741 by 2050 (-41.0%). A significant population decline is projected over the next three decades.
Aging Rate of Sanuki
The aging rate (percentage of residents aged 65 and over) is 37.3% as of 2020 and is projected to rise to 49.6% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Sanuki is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #683 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #589 out of 1903 nationwide.
- Population size: Ranked #754 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