Nagano長野県
Okaya 岡谷市
Data last updated:
2020
(Census)
47,820
2030
(Projection)
42,053
▼ -12.1%
2040
(Projection)
36,567
▼ -23.5%
2050
(Projection)
31,505
▼ -34.1%
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.
About Okaya
Overview
Okaya (岡谷市) is a municipality in Nagano, Japan, with a population of 47,820 as of 2020.
Population Projection
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Okaya's population is expected to reach 42,053 by 2030 (-12.1%), 36,567 by 2040 (-23.5%), and 31,505 by 2050 (-34.1%). A significant population decline is projected over the next three decades.
Aging Outlook
The aging rate (percentage of residents aged 65 and over) is 34.7% as of 2020 and is projected to rise to 43.6% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Okaya's population decline rate exceeds the national average.