Nagano長野県
Shiojiri 塩尻市
Data last updated:
Shiojiri, Nagano, Japan has a population of 65,442 (2025 national census). IPSS projections estimate 64,684 by 2030 and 57,415 by 2050 (a decrease of about 14.6% from 2020), with the share of residents aged 65+ rising from 28.6% in 2020 to 38.0%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
65,442
2030
(Projection)
64,684
▼ -3.8%
2040
(Projection)
61,370
▼ -8.7%
2050
(Projection)
57,415
▼ -14.6%
Change vs. 2020 census
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Other municipalities in Nagano (長野県)
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.
Shiojiri 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 | 57,417 | ▼ -14.6% | Census |
| 1985 | 60,329 | ▼ -10.3% | Census |
| 1990 | 61,420 | ▼ -8.7% | Census |
| 1995 | 64,236 | ▼ -4.5% | Census |
| 2000 | 67,747 | ▲ +0.8% | Census |
| 2005 | 68,346 | ▲ +1.6% | Census |
| 2010 | 67,670 | ▲ +0.6% | Census |
| 2015 | 67,135 | ▼ -0.2% | Census |
| 2020 | 67,241 | — | Census |
| 2025 | 65,442 | ▼ -2.7% | Census |
| 2030 | 64,684 | ▼ -3.8% | Projection |
| 2035 | 63,146 | ▼ -6.1% | Projection |
| 2040 | 61,370 | ▼ -8.7% | Projection |
| 2045 | 59,460 | ▼ -11.6% | Projection |
| 2050 | 57,415 | ▼ -14.6% | Projection |
About Shiojiri
Overview
Shiojiri (塩尻市) is a municipality in Nagano, Japan, with a population of 65,442 as of 2025.
Population Projection of Shiojiri
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Shiojiri's population is expected to reach 64,684 by 2030 (-3.8%), 61,370 by 2040 (-8.7%), and 57,415 by 2050 (-14.6%). A modest population change is expected.
Aging Rate of Shiojiri
The aging rate (percentage of residents aged 65 and over) is 28.6% as of 2020 and is projected to rise to 38.0% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Shiojiri's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1494 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1402 out of 1903 nationwide.
- Population size: Ranked #576 out of 1917 nationwide.
- Related: National rankings / All municipalities in Nagano
Earnings in Nagano (長野県): Average salary in Nagano (長野県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure