Japan Population Decline Simulator

Iwate岩手県

Nishiwaga 西和賀町

Data last updated:

2020

(Census)

5,137

2030

(Projection)

3,777

-26.5%

2040

(Projection)

2,760

-46.3%

2050

(Projection)

1,940

-62.2%

Elderly Rate (65+): 2020 51%2050 60.1%

Other municipalities in Iwate (岩手県)

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 Nishiwaga

Overview

Nishiwaga (西和賀町) is a municipality in Iwate, Japan, with a population of 5,137 as of 2020.

Population Projection

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Nishiwaga's population is expected to reach 3,777 by 2030 (-26.5%), 2,760 by 2040 (-46.3%), and 1,940 by 2050 (-62.2%). 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 51.0% as of 2020 and is projected to rise to 60.1% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.

National Comparison

Nishiwaga is among the most rapidly declining municipalities in Japan.

Frequently Asked Questions

Q.What is the current population of Nishiwaga, Iwate?
A.According to the 2020 national census, Nishiwaga has a population of 5,137.
Q.What is the projected population of Nishiwaga in the future?
A.According to IPSS projections, Nishiwaga's population is expected to be 3,777 in 2030, 2,760 in 2040, and 1,940 in 2050.
Q.What is the population decline rate of Nishiwaga?
A.Over the 30 years from 2020 to 2050, Nishiwaga's population is projected to change by -62.2%. The 10-year change is -26.5% and the 20-year change is -46.3%.
Q.What is the aging rate of Nishiwaga?
A.Nishiwaga's aging rate (percentage aged 65 and over) is 51.0% as of 2020, projected to rise to 60.1% 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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