Nagano長野県
Suwa 諏訪市
Data last updated:
Suwa, Nagano, Japan has a population of 46,354 (2025 national census). IPSS projections estimate 44,885 by 2030 and 36,871 by 2050 (a decrease of about 24.3% from 2020), with the share of residents aged 65+ rising from 31.0% in 2020 to 40.1%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
46,354
2030
(Projection)
44,885
▼ -7.9%
2040
(Projection)
40,882
▼ -16.1%
2050
(Projection)
36,871
▼ -24.3%
Change vs. 2020 census
Enter your age
See the population of 諏訪市 when you turn 50, 60, 70 and 80.
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.
Suwa 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 | 50,558 | ▲ +3.8% | Census |
| 1985 | 52,329 | ▲ +7.4% | Census |
| 1990 | 52,464 | ▲ +7.7% | Census |
| 1995 | 52,104 | ▲ +6.9% | Census |
| 2000 | 53,858 | ▲ +10.5% | Census |
| 2005 | 53,240 | ▲ +9.3% | Census |
| 2010 | 51,200 | ▲ +5.1% | Census |
| 2015 | 50,140 | ▲ +2.9% | Census |
| 2020 | 48,729 | — | Census |
| 2025 | 46,354 | ▼ -4.9% | Census |
| 2030 | 44,885 | ▼ -7.9% | Projection |
| 2035 | 42,876 | ▼ -12.0% | Projection |
| 2040 | 40,882 | ▼ -16.1% | Projection |
| 2045 | 38,871 | ▼ -20.2% | Projection |
| 2050 | 36,871 | ▼ -24.3% | Projection |
About Suwa
Overview
Suwa (諏訪市) is a municipality in Nagano, Japan, with a population of 46,354 as of 2025.
Population Projection of Suwa
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Suwa's population is expected to reach 44,885 by 2030 (-7.9%), 40,882 by 2040 (-16.1%), and 36,871 by 2050 (-24.3%). A significant population decline is projected over the next three decades.
Aging Rate of Suwa
The aging rate (percentage of residents aged 65 and over) is 31.0% as of 2020 and is projected to rise to 40.1% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Suwa's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1230 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1249 out of 1903 nationwide.
- Population size: Ranked #711 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