Miyazaki宮崎県
Saito 西都市
Data last updated:
Saito, Miyazaki, Japan has a population of 26,565 (2025 national census). IPSS projections estimate 24,532 by 2030 and 16,977 by 2050 (a decrease of about 40.7% from 2020), with the share of residents aged 65+ rising from 38.3% in 2020 to 48.6%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
26,565
2030Projection
24,532
▼ -14.3%
2040Projection
20,669
▼ -27.8%
2050Projection
16,977
▼ -40.7%
Change vs. 2020 census
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Other municipalities in Miyazaki (宮崎県)
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.
Saito 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 | 37,836 | ▲ +32.2% | Census |
| 1985 | 38,370 | ▲ +34.1% | Census |
| 1990 | 37,218 | ▲ +30.1% | Census |
| 1995 | 36,331 | ▲ +27.0% | Census |
| 2000 | 35,381 | ▲ +23.7% | Census |
| 2005 | 34,087 | ▲ +19.1% | Census |
| 2010 | 32,614 | ▲ +14.0% | Census |
| 2015 | 30,683 | ▲ +7.2% | Census |
| 2020 | 28,610 | — | Census |
| 2025 | 26,565 | ▼ -7.1% | Census |
| 2030 | 24,532 | ▼ -14.3% | Projection |
| 2035 | 22,587 | ▼ -21.1% | Projection |
| 2040 | 20,669 | ▼ -27.8% | Projection |
| 2045 | 18,775 | ▼ -34.4% | Projection |
| 2050 | 16,977 | ▼ -40.7% | Projection |
About Saito
Overview
Saito (西都市) is a municipality in Miyazaki, Japan, with a population of 26,565 as of 2025.
Population Projection of Saito
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Saito's population is expected to reach 24,532 by 2030 (-14.3%), 20,669 by 2040 (-27.8%), and 16,977 by 2050 (-40.7%). A significant population decline is projected over the next three decades.
Aging Rate of Saito
The aging rate (percentage of residents aged 65 and over) is 38.3% as of 2020 and is projected to rise to 48.6% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Saito is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #696 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #659 out of 1903 nationwide.
- Population size: Ranked #962 out of 1917 nationwide.
- Related: National rankings / All municipalities in Miyazaki
Earnings in Miyazaki (宮崎県): Average salary in Miyazaki (宮崎県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure