Japan Population Decline Simulator

Tokushima徳島県

Kaiyou 海陽町

Data last updated:

2020

(Census)

8,363

2030

(Projection)

6,600

-21.1%

2040

(Projection)

5,043

-39.7%

2050

(Projection)

3,720

-55.5%

Elderly Rate (65+): 2020 46.6%2050 60.4%

Other municipalities in Tokushima (徳島県)

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.

About Kaiyou

Overview

Kaiyou (海陽町) is a municipality in Tokushima, Japan, with a population of 8,363 as of 2020.

Population Projection

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Kaiyou's population is expected to reach 6,600 by 2030 (-21.1%), 5,043 by 2040 (-39.7%), and 3,720 by 2050 (-55.5%). 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 46.6% as of 2020 and is projected to rise to 60.4% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.

National Comparison

Kaiyou is experiencing one of the faster rates of population decline in Japan.

Frequently Asked Questions

Q.What is the current population of Kaiyou, Tokushima?
A.According to the 2020 national census, Kaiyou has a population of 8,363.
Q.What is the projected population of Kaiyou in the future?
A.According to IPSS projections, Kaiyou's population is expected to be 6,600 in 2030, 5,043 in 2040, and 3,720 in 2050.
Q.What is the population decline rate of Kaiyou?
A.Over the 30 years from 2020 to 2050, Kaiyou's population is projected to change by -55.5%. The 10-year change is -21.1% and the 20-year change is -39.7%.
Q.What is the aging rate of Kaiyou?
A.Kaiyou's aging rate (percentage aged 65 and over) is 46.6% as of 2020, projected to rise to 60.4% by 2050.
Q.Where does this population data come from?
A.Historical data is sourced from Japan's national census via the e-Stat API (Statistics Bureau of Japan). Future projections are from the National Institute of Population and Social Security Research (IPSS) "Regional Population Projections 2023".
Q.Is the data up to date?
A.Historical data uses the 2020 national census results. Future projections use the IPSS 2023 edition. Data will be updated as new census results become available.

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