Hokkaido北海道
Iwanai 岩内町
Data last updated:
2020
(Census)
11,654
2030
(Projection)
9,111
▼ -21.8%
2040
(Projection)
7,084
▼ -39.2%
2050
(Projection)
5,353
▼ -54.1%
Other municipalities in Hokkaido (北海道)
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 Iwanai
Overview
Iwanai (岩内町) is a municipality in Hokkaido, Japan, with a population of 11,654 as of 2020.
Population Projection
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Iwanai's population is expected to reach 9,111 by 2030 (-21.8%), 7,084 by 2040 (-39.2%), and 5,353 by 2050 (-54.1%). The town is projected to lose more than half its population over 30 years.
Aging Outlook
The aging rate (percentage of residents aged 65 and over) is 37.5% as of 2020 and is projected to rise to 52.7% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Iwanai is experiencing one of the faster rates of population decline in Japan.