Japan Population Decline Simulator

Kagawa香川県

Mitoyo 三豊市

Data last updated:

Mitoyo, Kagawa, Japan has a population of 61,917 (2020 national census). IPSS projections estimate 54,472 by 2030 and 40,383 by 2050 (a decrease of about 34.8% from 2020), with the share of residents aged 65+ rising from 36.6% to 44.5%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2020

(Census)

61,917

2030

(Projection)

54,472

-12.0%

2040

(Projection)

47,246

-23.7%

2050

(Projection)

40,383

-34.8%

Elderly Rate (65+): 2020 36.6%2050 44.5%

Other municipalities in Kagawa (香川県)

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.

Mitoyo Population Projection Table (2020–2050)

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

YearPopulationvs 2020Type
202061,917Census
202558,100▼ -6.2%Projection
203054,472▼ -12.0%Projection
203550,838▼ -17.9%Projection
204047,246▼ -23.7%Projection
204543,721▼ -29.4%Projection
205040,383▼ -34.8%Projection

About Mitoyo

Overview

Mitoyo (三豊市) is a municipality in Kagawa, Japan, with a population of 61,917 as of 2020.

Population Projection of Mitoyo

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Mitoyo's population is expected to reach 54,472 by 2030 (-12.0%), 47,246 by 2040 (-23.7%), and 40,383 by 2050 (-34.8%). A significant population decline is projected over the next three decades.

Aging Rate of Mitoyo

The aging rate (percentage of residents aged 65 and over) is 36.6% as of 2020 and is projected to rise to 44.5% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

Mitoyo's population decline rate exceeds the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #903 out of 1916 municipalities nationwide.
  • Aging rate in 2050: Ranked #916 out of 1916 nationwide.
  • Population size: Ranked #607 out of 1916 nationwide.
  • Related: National rankings / All municipalities in Kagawa

Frequently Asked Questions

Q.What is the current population of Mitoyo, Kagawa?
A.According to the 2020 national census, Mitoyo has a population of 61,917.
Q.What is the population of Mitoyo in 2026?
A.Mitoyo's population in 2026 is estimated at approximately 57,374. This is an interpolated reference value between the 2020 census (61,917) and the IPSS projection for 2030 (54,472).
Q.What is the projected population of Mitoyo in the future?
A.According to IPSS projections, Mitoyo's population is expected to be 54,472 in 2030, 47,246 in 2040, and 40,383 in 2050.
Q.What is the population decline rate of Mitoyo?
A.Over the 30 years from 2020 to 2050, Mitoyo's population is projected to change by -34.8%. The 10-year change is -12.0% and the 20-year change is -23.7%.
Q.Why is the population of Mitoyo 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 Mitoyo, the share of residents aged 65+ is projected to rise from 36.6% to 44.5% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Mitoyo?
A.Mitoyo's aging rate (percentage aged 65 and over) is 36.6% as of 2020, projected to rise to 44.5% 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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