Kanagawa神奈川県
Seya 横浜市瀬谷区
Data last updated:
2020
(Census)
122,671
2030
(Projection)
115,024
▼ -6.2%
2040
(Projection)
106,047
▼ -13.6%
2050
(Projection)
97,706
▼ -20.4%
Other municipalities in Kanagawa (神奈川県)
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 Seya
Overview
Seya (横浜市瀬谷区) is a municipality in Kanagawa, Japan, with a population of 122,671 as of 2020.
Population Projection
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Seya's population is expected to reach 115,024 by 2030 (-6.2%), 106,047 by 2040 (-13.6%), and 97,706 by 2050 (-20.4%). A significant population decline is projected over the next three decades.
Aging Outlook
The aging rate (percentage of residents aged 65 and over) is 28.9% as of 2020 and is projected to rise to 41.5% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Seya's population decline rate exceeds the national average.