Fukuoka福岡県
Koga 古賀市
Data last updated:
2020
(Census)
58,831
2030
(Projection)
57,467
▼ -2.3%
2040
(Projection)
55,831
▼ -5.1%
2050
(Projection)
53,950
▼ -8.3%
Other municipalities in Fukuoka (福岡県)
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 Koga
Overview
Koga (古賀市) is a municipality in Fukuoka, Japan, with a population of 58,831 as of 2020.
Population Projection
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Koga's population is expected to reach 57,467 by 2030 (-2.3%), 55,831 by 2040 (-5.1%), and 53,950 by 2050 (-8.3%). A modest population change is expected.
Aging Outlook
The aging rate (percentage of residents aged 65 and over) is 27.7% as of 2020 and is projected to rise to 34.9% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Koga's demographic trajectory is similar to the national average.