Kagawa香川県
Sakaide 坂出市
Data last updated:
Sakaide, Kagawa, Japan has a population of 47,709 (2025 national census). IPSS projections estimate 45,369 by 2030 and 35,075 by 2050 (a decrease of about 30.7% from 2020), with the share of residents aged 65+ rising from 36.1% in 2020 to 42.2%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
47,709
2030Projection
45,369
▼ -10.4%
2040Projection
40,124
▼ -20.7%
2050Projection
35,075
▼ -30.7%
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.
Sakaide 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 | 66,290 | ▲ +30.9% | Census |
| 1985 | 66,087 | ▲ +30.5% | Census |
| 1990 | 63,876 | ▲ +26.2% | Census |
| 1995 | 61,351 | ▲ +21.2% | Census |
| 2000 | 59,228 | ▲ +17.0% | Census |
| 2005 | 57,266 | ▲ +13.1% | Census |
| 2010 | 55,621 | ▲ +9.9% | Census |
| 2015 | 53,164 | ▲ +5.0% | Census |
| 2020 | 50,624 | — | Census |
| 2025 | 47,709 | ▼ -5.8% | Census |
| 2030 | 45,369 | ▼ -10.4% | Projection |
| 2035 | 42,758 | ▼ -15.5% | Projection |
| 2040 | 40,124 | ▼ -20.7% | Projection |
| 2045 | 37,488 | ▼ -25.9% | Projection |
| 2050 | 35,075 | ▼ -30.7% | Projection |
About Sakaide
Overview
Sakaide (坂出市) is a municipality in Kagawa, Japan, with a population of 47,709 as of 2025.
Population Projection of Sakaide
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Sakaide's population is expected to reach 45,369 by 2030 (-10.4%), 40,124 by 2040 (-20.7%), and 35,075 by 2050 (-30.7%). A significant population decline is projected over the next three decades.
Aging Rate of Sakaide
The aging rate (percentage of residents aged 65 and over) is 36.1% as of 2020 and is projected to rise to 42.2% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Sakaide's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1032 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1082 out of 1903 nationwide.
- Population size: Ranked #696 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