Miyazaki宮崎県
Kadogawa 門川町
Data last updated:
Kadogawa, Miyazaki, Japan has a population of 16,137 (2025 national census). IPSS projections estimate 15,353 by 2030 and 11,430 by 2050 (a decrease of about 34.2% from 2020), with the share of residents aged 65+ rising from 34.3% in 2020 to 44.4%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
16,137
2030Projection
15,353
▼ -11.7%
2040Projection
13,388
▼ -23.0%
2050Projection
11,430
▼ -34.2%
Change vs. 2020 census
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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.
Kadogawa 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 | 18,533 | ▲ +6.6% | Census |
| 1985 | 18,941 | ▲ +9.0% | Census |
| 1990 | 18,894 | ▲ +8.7% | Census |
| 1995 | 19,155 | ▲ +10.2% | Census |
| 2000 | 19,287 | ▲ +11.0% | Census |
| 2005 | 19,207 | ▲ +10.5% | Census |
| 2010 | 18,854 | ▲ +8.5% | Census |
| 2015 | 18,183 | ▲ +4.6% | Census |
| 2020 | 17,379 | — | Census |
| 2025 | 16,137 | ▼ -7.1% | Census |
| 2030 | 15,353 | ▼ -11.7% | Projection |
| 2035 | 14,375 | ▼ -17.3% | Projection |
| 2040 | 13,388 | ▼ -23.0% | Projection |
| 2045 | 12,409 | ▼ -28.6% | Projection |
| 2050 | 11,430 | ▼ -34.2% | Projection |
About Kadogawa
Overview
Kadogawa (門川町) is a municipality in Miyazaki, Japan, with a population of 16,137 as of 2025.
Population Projection of Kadogawa
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Kadogawa's population is expected to reach 15,353 by 2030 (-11.7%), 13,388 by 2040 (-23.0%), and 11,430 by 2050 (-34.2%). A significant population decline is projected over the next three decades.
Aging Rate of Kadogawa
The aging rate (percentage of residents aged 65 and over) is 34.3% as of 2020 and is projected to rise to 44.4% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Kadogawa's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #921 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #925 out of 1903 nationwide.
- Population size: Ranked #1155 out of 1917 nationwide.
- Related: National rankings / All municipalities in Miyazaki
Earnings in Miyazaki (宮崎県): Average salary in Miyazaki (宮崎県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure