Japan Population Decline Simulator

Kochi高知県

Ootoyo 大豊町

Data last updated:

2020

(Census)

3,256

2030

(Projection)

2,297

-29.5%

2040

(Projection)

1,558

-52.1%

2050

(Projection)

1,016

-68.8%

Elderly Rate (65+): 2020 58.7%2050 66.1%

Other municipalities in Kochi (高知県)

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 Ootoyo

Overview

Ootoyo (大豊町) is a municipality in Kochi, Japan, with a population of 3,256 as of 2020.

Population Projection

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Ootoyo's population is expected to reach 2,297 by 2030 (-29.5%), 1,558 by 2040 (-52.1%), and 1,016 by 2050 (-68.8%). 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 58.7% as of 2020 and is projected to rise to 66.1% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.

National Comparison

Ootoyo is among the most rapidly declining municipalities in Japan.

Frequently Asked Questions

Q.What is the current population of Ootoyo, Kochi?
A.According to the 2020 national census, Ootoyo has a population of 3,256.
Q.What is the projected population of Ootoyo in the future?
A.According to IPSS projections, Ootoyo's population is expected to be 2,297 in 2030, 1,558 in 2040, and 1,016 in 2050.
Q.What is the population decline rate of Ootoyo?
A.Over the 30 years from 2020 to 2050, Ootoyo's population is projected to change by -68.8%. The 10-year change is -29.5% and the 20-year change is -52.1%.
Q.What is the aging rate of Ootoyo?
A.Ootoyo's aging rate (percentage aged 65 and over) is 58.7% as of 2020, projected to rise to 66.1% 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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