Okayama岡山県
Akaiwa 赤磐市
Data last updated:
Akaiwa, Okayama, Japan has a population of 42,686 (2020 national census). IPSS projections estimate 40,250 by 2030 and 34,386 by 2050 (a decrease of about 19.4% from 2020), with the share of residents aged 65+ rising from 33.9% to 39.5%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2020
(Census)
42,686
2030
(Projection)
40,250
▼ -5.7%
2040
(Projection)
37,265
▼ -12.7%
2050
(Projection)
34,386
▼ -19.4%
Other municipalities in Okayama (岡山県)
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.
Akaiwa Population Projection Table (2020–2050)
Population by year, based on the national census and IPSS (2023) projections.
| Year | Population | vs 2020 | Type |
|---|---|---|---|
| 2020 | 42,686 | — | Census |
| 2025 | 41,584 | ▼ -2.6% | Projection |
| 2030 | 40,250 | ▼ -5.7% | Projection |
| 2035 | 38,792 | ▼ -9.1% | Projection |
| 2040 | 37,265 | ▼ -12.7% | Projection |
| 2045 | 35,791 | ▼ -16.2% | Projection |
| 2050 | 34,386 | ▼ -19.4% | Projection |
About Akaiwa
Overview
Akaiwa (赤磐市) is a municipality in Okayama, Japan, with a population of 42,686 as of 2020.
Population Projection of Akaiwa
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Akaiwa's population is expected to reach 40,250 by 2030 (-5.7%), 37,265 by 2040 (-12.7%), and 34,386 by 2050 (-19.4%). A modest population change is expected.
Aging Rate of Akaiwa
The aging rate (percentage of residents aged 65 and over) is 33.9% as of 2020 and is projected to rise to 39.5% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Akaiwa's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1371 out of 1916 municipalities nationwide.
- Aging rate in 2050: Ranked #1305 out of 1916 nationwide.
- Population size: Ranked #777 out of 1916 nationwide.
- Related: National rankings / All municipalities in Okayama