일본 인구 감소 시뮬레이터

Aichi愛知県

Ichinomiya 一宮市

Data last updated:

Ichinomiya, Aichi, Japan has a population of 379,981 (2020 national census). IPSS projections estimate 361,238 by 2030 and 321,749 by 2050 (a decrease of about 15.3% from 2020), with the share of residents aged 65+ rising from 27.6% to 38.0%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2020년

(실적)

379,981명

2030년

(추계)

361,238명

▼ -4.9%

2040년

(추계)

342,345명

▼ -9.9%

2050년

(추계)

321,749명

▼ -15.3%

고령화율（65세 이상）: 2020년 27.6%→2050년 38%

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Aichi (愛知県)의 모든 시구정촌 보기 →

데이터 출처

  • 일본 정부 통계 종합 포털(e-Stat)（https://www.e-stat.go.jp/）
  • 국립사회보장・인구문제연구소 「일본의 지역별 장래추계인구(레이와 5년 추계)」

※이 서비스는 e-Stat의 API 기능을 사용하고 있으나 서비스 내용은 일본 정부에 의해 보증된 것이 아닙니다.

Ichinomiya Population Projection Table (2020–2050)

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

YearPopulationvs 2020Type
2020379,981—Census
2025369,245▼ -2.8%Projection
2030361,238▼ -4.9%Projection
2035352,162▼ -7.3%Projection
2040342,345▼ -9.9%Projection
2045332,241▼ -12.6%Projection
2050321,749▼ -15.3%Projection

About Ichinomiya

Overview

Ichinomiya (一宮市) is a municipality in Aichi, Japan, with a population of 379,981 as of 2020.

Population Projection of Ichinomiya

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Ichinomiya's population is expected to reach 361,238 by 2030 (-4.9%), 342,345 by 2040 (-9.9%), and 321,749 by 2050 (-15.3%). A modest population change is expected.

Aging Rate of Ichinomiya

The aging rate (percentage of residents aged 65 and over) is 27.6% as of 2020 and is projected to rise to 38.0% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #1476 out of 1916 municipalities nationwide.
  • Aging rate in 2050: Ranked #1403 out of 1916 nationwide.
  • Population size: Ranked #62 out of 1916 nationwide.
  • Related: National rankings / All municipalities in Aichi

Frequently Asked Questions

Q.What is the current population of Ichinomiya, Aichi?
A.According to the 2020 national census, Ichinomiya has a population of 379,981.
Q.What is the population of Ichinomiya in 2026?
A.Ichinomiya's population in 2026 is estimated at approximately 367,644. This is an interpolated reference value between the 2020 census (379,981) and the IPSS projection for 2030 (361,238).
Q.What is the projected population of Ichinomiya in the future?
A.According to IPSS projections, Ichinomiya's population is expected to be 361,238 in 2030, 342,345 in 2040, and 321,749 in 2050.
Q.What is the population decline rate of Ichinomiya?
A.Over the 30 years from 2020 to 2050, Ichinomiya's population is projected to change by -15.3%. The 10-year change is -4.9% and the 20-year change is -9.9%.
Q.Why is the population of Ichinomiya 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 Ichinomiya, the share of residents aged 65+ is projected to rise from 27.6% to 38.0% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Ichinomiya?
A.Ichinomiya's aging rate (percentage aged 65 and over) is 27.6% as of 2020, projected to rise to 38.0% 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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