Japan Population Decline Simulator

Hokkaido北海道

Rumoi 留萌市

Data last updated:

2020

(Census)

20,123

2030

(Projection)

15,735

-21.8%

2040

(Projection)

12,113

-39.8%

2050

(Projection)

8,955

-55.5%

Elderly Rate (65+): 2020 38.5%2050 53.6%

Other municipalities in Hokkaido (北海道)

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 Rumoi

Overview

Rumoi (留萌市) is a municipality in Hokkaido, Japan, with a population of 20,123 as of 2020.

Population Projection

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Rumoi's population is expected to reach 15,735 by 2030 (-21.8%), 12,113 by 2040 (-39.8%), and 8,955 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 38.5% as of 2020 and is projected to rise to 53.6% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.

National Comparison

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

Frequently Asked Questions

Q.What is the current population of Rumoi, Hokkaido?
A.According to the 2020 national census, Rumoi has a population of 20,123.
Q.What is the projected population of Rumoi in the future?
A.According to IPSS projections, Rumoi's population is expected to be 15,735 in 2030, 12,113 in 2040, and 8,955 in 2050.
Q.What is the population decline rate of Rumoi?
A.Over the 30 years from 2020 to 2050, Rumoi's population is projected to change by -55.5%. The 10-year change is -21.8% and the 20-year change is -39.8%.
Q.What is the aging rate of Rumoi?
A.Rumoi's aging rate (percentage aged 65 and over) is 38.5% as of 2020, projected to rise to 53.6% 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.

Municipalities with Similar Trends

Share this page