Japan Population Decline Simulator

Miyazaki宮崎県

Gokase 五ヶ瀬町

Data last updated:

Gokase, Miyazaki, Japan has a population of 3,476 (2020 national census). IPSS projections estimate 2,754 by 2030 and 1,699 by 2050 (a decrease of about 51.1% from 2020), with the share of residents aged 65+ rising from 42.9% to 49.8%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2020

(Census)

3,476

2030

(Projection)

2,754

-20.8%

2040

(Projection)

2,183

-37.2%

2050

(Projection)

1,699

-51.1%

Elderly Rate (65+): 2020 42.9%2050 49.8%

Other municipalities in Miyazaki (宮崎県)

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.

Gokase Population Projection Table (2020–2050)

Population by year, based on the national census and IPSS (2023) projections.

YearPopulationvs 2020Type
20203,476Census
20253,090▼ -11.1%Projection
20302,754▼ -20.8%Projection
20352,447▼ -29.6%Projection
20402,183▼ -37.2%Projection
20451,929▼ -44.5%Projection
20501,699▼ -51.1%Projection

About Gokase

Overview

Gokase (五ヶ瀬町) is a municipality in Miyazaki, Japan, with a population of 3,476 as of 2020.

Population Projection of Gokase

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Gokase's population is expected to reach 2,754 by 2030 (-20.8%), 2,183 by 2040 (-37.2%), and 1,699 by 2050 (-51.1%). The town is projected to lose more than half its population over 30 years.

Aging Rate of Gokase

The aging rate (percentage of residents aged 65 and over) is 42.9% as of 2020 and is projected to rise to 49.8% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #299 out of 1916 municipalities nationwide.
  • Aging rate in 2050: Ranked #579 out of 1916 nationwide.
  • Population size: Ranked #1719 out of 1916 nationwide.
  • Related: National rankings / All municipalities in Miyazaki

Frequently Asked Questions

Q.What is the current population of Gokase, Miyazaki?
A.According to the 2020 national census, Gokase has a population of 3,476.
Q.What is the population of Gokase in 2026?
A.Gokase's population in 2026 is estimated at approximately 3,023. This is an interpolated reference value between the 2020 census (3,476) and the IPSS projection for 2030 (2,754).
Q.What is the projected population of Gokase in the future?
A.According to IPSS projections, Gokase's population is expected to be 2,754 in 2030, 2,183 in 2040, and 1,699 in 2050.
Q.What is the population decline rate of Gokase?
A.Over the 30 years from 2020 to 2050, Gokase's population is projected to change by -51.1%. The 10-year change is -20.8% and the 20-year change is -37.2%.
Q.Why is the population of Gokase declining?
A.Nationwide, Japan's population decline is driven by natural decrease (deaths exceeding births) and, in regional municipalities, by net out-migration of young people to major metropolitan areas. In Gokase, the share of residents aged 65+ is projected to rise from 42.9% to 49.8% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Gokase?
A.Gokase's aging rate (percentage aged 65 and over) is 42.9% as of 2020, projected to rise to 49.8% 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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