Kagoshima鹿児島県
Aira 姶良市
Data last updated:
Aira, Kagoshima, Japan has a population of 76,868 (2025 national census). IPSS projections estimate 73,747 by 2030 and 64,544 by 2050 (a decrease of about 15.5% from 2020), with the share of residents aged 65+ rising from 31.5% in 2020 to 39.1%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
76,868
2030
(Projection)
73,747
▼ -3.4%
2040
(Projection)
69,185
▼ -9.4%
2050
(Projection)
64,544
▼ -15.5%
Change vs. 2020 census
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Other municipalities in Kagoshima (鹿児島県)
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.
Aira 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 | 62,992 | ▼ -17.5% | Census |
| 1985 | 66,830 | ▼ -12.5% | Census |
| 1990 | 68,789 | ▼ -9.9% | Census |
| 1995 | 71,762 | ▼ -6.0% | Census |
| 2000 | 73,640 | ▼ -3.5% | Census |
| 2005 | 74,840 | ▼ -2.0% | Census |
| 2010 | 74,809 | ▼ -2.0% | Census |
| 2015 | 75,173 | ▼ -1.5% | Census |
| 2020 | 76,348 | — | Census |
| 2025 | 76,868 | ▲ +0.7% | Census |
| 2030 | 73,747 | ▼ -3.4% | Projection |
| 2035 | 71,563 | ▼ -6.3% | Projection |
| 2040 | 69,185 | ▼ -9.4% | Projection |
| 2045 | 66,844 | ▼ -12.4% | Projection |
| 2050 | 64,544 | ▼ -15.5% | Projection |
About Aira
Overview
Aira (姶良市) is a municipality in Kagoshima, Japan, with a population of 76,868 as of 2025.
Population Projection of Aira
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Aira's population is expected to reach 73,747 by 2030 (-3.4%), 69,185 by 2040 (-9.4%), and 64,544 by 2050 (-15.5%). A modest population change is expected.
Aging Rate of Aira
The aging rate (percentage of residents aged 65 and over) is 31.5% as of 2020 and is projected to rise to 39.1% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Aira's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1469 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1335 out of 1903 nationwide.
- Population size: Ranked #507 out of 1917 nationwide.
- Related: National rankings / All municipalities in Kagoshima
Earnings in Kagoshima (鹿児島県): Average salary in Kagoshima (鹿児島県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure