Japan Population Decline Simulator

Gunma群馬県

Yoshioka 吉岡町

Data last updated:

Yoshioka, Gunma, Japan has a population of 22,885 (2025 national census). IPSS projections estimate 22,704 by 2030 and 22,164 by 2050 (an increase of about 1.7% from 2020), with the share of residents aged 65+ rising from 24.0% in 2020 to 33.2%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025

(Census)

22,885

2030

(Projection)

22,704

▲ +4.2%

2040

(Projection)

22,813

▲ +4.7%

2050

(Projection)

22,164

▲ +1.7%

Change vs. 2020 census

Elderly Rate (65+): 2020 24%→2050 33.2%

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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.

Yoshioka Population Table (1980–2050)

Population by year: national census results (restated to current municipal boundaries) and IPSS (2023) projections based on the 2020 census.

YearPopulationvs 2020Type
198011,501▼ -47.2%Census
198512,488▼ -42.7%Census
199013,672▼ -37.3%Census
199515,171▼ -30.4%Census
200016,504▼ -24.3%Census
200518,060▼ -17.1%Census
201019,801▼ -9.1%Census
201521,080▼ -3.3%Census
202021,792—Census
202522,885▲ +5.0%Census
203022,704▲ +4.2%Projection
203522,865▲ +4.9%Projection
204022,813▲ +4.7%Projection
204522,571▲ +3.6%Projection
205022,164▲ +1.7%Projection

About Yoshioka

Overview

Yoshioka (吉岡町) is a municipality in Gunma, Japan, with a population of 22,885 as of 2025.

Population Projection of Yoshioka

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Yoshioka's population is expected to reach 22,704 by 2030 (+4.2%), 22,813 by 2040 (+4.7%), and 22,164 by 2050 (+1.7%). Yoshioka is among the rare Japanese municipalities projected to see population growth.

Aging Rate of Yoshioka

The aging rate (percentage of residents aged 65 and over) is 24.0% as of 2020 and is projected to rise to 33.2% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

Yoshioka's demographic trajectory is similar to the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #1816 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1716 out of 1903 nationwide.
  • Population size: Ranked #1029 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Gunma

Earnings in Gunma (群馬県): Average salary in Gunma (群馬県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure

Frequently Asked Questions

Q.What is the current population of Yoshioka, Gunma?
A.According to the 2025 national census, Yoshioka has a population of 22,885.
Q.What is the population of Yoshioka in 2026?
A.Yoshioka's population in 2026 is estimated at approximately 22,849. This is an interpolated reference value between the 2025 census (22,885) and the IPSS projection for 2030 (22,704).
Q.What is the projected population of Yoshioka in the future?
A.According to IPSS projections, Yoshioka's population is expected to be 22,704 in 2030, 22,813 in 2040, and 22,164 in 2050.
Q.What is the population decline rate of Yoshioka?
A.Over the 30 years from 2020 to 2050, Yoshioka's population is projected to change by +1.7%. The 10-year change is +4.2% and the 20-year change is +4.7%.
Q.Why is the population of Yoshioka growing?
A.Municipalities with growing populations typically benefit from net in-migration driven by good access to major metropolitan areas, housing development, and family support policies. Yoshioka is one of the minority of Japanese municipalities projected to grow through 2050.
Q.What is the aging rate of Yoshioka?
A.Yoshioka's aging rate (percentage aged 65 and over) is 24.0% as of 2020, projected to rise to 33.2% 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 national census results through 2025. Future projections use the IPSS 2023 edition, which is based on the 2020 census.

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