Saga佐賀県
Saga 佐賀市
Data last updated:
Saga, Saga, Japan has a population of 227,580 (2025 national census). IPSS projections estimate 222,225 by 2030 and 194,311 by 2050 (a decrease of about 16.7% from 2020), with the share of residents aged 65+ rising from 28.5% in 2020 to 37.4%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
227,580
2030Projection
222,225
▼ -4.7%
2040Projection
208,991
▼ -10.4%
2050Projection
194,311
▼ -16.7%
Change vs. 2020 census
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Other municipalities in Saga (佐賀県)
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.
Saga 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 | 236,029 | ▲ +1.2% | Census |
| 1985 | 242,072 | ▲ +3.8% | Census |
| 1990 | 243,726 | ▲ +4.5% | Census |
| 1995 | 246,674 | ▲ +5.7% | Census |
| 2000 | 243,076 | ▲ +4.2% | Census |
| 2005 | 241,361 | ▲ +3.5% | Census |
| 2010 | 237,506 | ▲ +1.8% | Census |
| 2015 | 236,372 | ▲ +1.3% | Census |
| 2020 | 233,301 | — | Census |
| 2025 | 227,580 | ▼ -2.5% | Census |
| 2030 | 222,225 | ▼ -4.7% | Projection |
| 2035 | 215,778 | ▼ -7.5% | Projection |
| 2040 | 208,991 | ▼ -10.4% | Projection |
| 2045 | 201,748 | ▼ -13.5% | Projection |
| 2050 | 194,311 | ▼ -16.7% | Projection |
About Saga
Overview
Saga (佐賀市) is a municipality in Saga, Japan, with a population of 227,580 as of 2025.
Population Projection of Saga
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Saga's population is expected to reach 222,225 by 2030 (-4.7%), 208,991 by 2040 (-10.4%), and 194,311 by 2050 (-16.7%). A modest population change is expected.
Aging Rate of Saga
The aging rate (percentage of residents aged 65 and over) is 28.5% as of 2020 and is projected to rise to 37.4% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Saga's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1443 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1448 out of 1903 nationwide.
- Population size: Ranked #148 out of 1917 nationwide.
- Related: National rankings / All municipalities in Saga
Earnings in Saga (佐賀県): Average salary in Saga (佐賀県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure