Niigata新潟県
Sado 佐渡市
Data last updated:
Sado, Niigata, Japan has a population of 45,378 (2025 national census). IPSS projections estimate 41,095 by 2030 and 25,968 by 2050 (a decrease of about 49.6% from 2020), with the share of residents aged 65+ rising from 42.6% in 2020 to 53.3%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
45,378
2030
(Projection)
41,095
▼ -20.2%
2040
(Projection)
32,955
▼ -36.0%
2050
(Projection)
25,968
▼ -49.6%
Change vs. 2020 census
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Other municipalities in Niigata (新潟県)
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.
Sado 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 | 84,942 | ▲ +65.0% | Census |
| 1985 | 81,939 | ▲ +59.1% | Census |
| 1990 | 78,061 | ▲ +51.6% | Census |
| 1995 | 74,949 | ▲ +45.6% | Census |
| 2000 | 72,173 | ▲ +40.2% | Census |
| 2005 | 67,386 | ▲ +30.9% | Census |
| 2010 | 62,727 | ▲ +21.8% | Census |
| 2015 | 57,255 | ▲ +11.2% | Census |
| 2020 | 51,492 | — | Census |
| 2025 | 45,378 | ▼ -11.9% | Census |
| 2030 | 41,095 | ▼ -20.2% | Projection |
| 2035 | 36,822 | ▼ -28.5% | Projection |
| 2040 | 32,955 | ▼ -36.0% | Projection |
| 2045 | 29,324 | ▼ -43.1% | Projection |
| 2050 | 25,968 | ▼ -49.6% | Projection |
About Sado
Overview
Sado (佐渡市) is a municipality in Niigata, Japan, with a population of 45,378 as of 2025.
Population Projection of Sado
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Sado's population is expected to reach 41,095 by 2030 (-20.2%), 32,955 by 2040 (-36.0%), and 25,968 by 2050 (-49.6%). A significant population decline is projected over the next three decades.
Aging Rate of Sado
The aging rate (percentage of residents aged 65 and over) is 42.6% as of 2020 and is projected to rise to 53.3% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Sado is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #358 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #353 out of 1903 nationwide.
- Population size: Ranked #721 out of 1917 nationwide.
- Related: National rankings / All municipalities in Niigata
Earnings in Niigata (新潟県): Average salary in Niigata (新潟県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure