일본 인구 감소 시뮬레이터

Okayama岡山県

Naka 岡山市中区

Data last updated:

Naka, Okayama, Japan has a population of 149,328 (2020 national census). IPSS projections estimate 148,406 by 2030 and 137,611 by 2050 (a decrease of about 7.8% from 2020), with the share of residents aged 65+ rising from 26.1% to 34.7%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2020년

(실적)

149,328명

2030년

(추계)

148,406명

▼ -0.6%

2040년

(추계)

144,256명

▼ -3.4%

2050년

(추계)

137,611명

▼ -7.8%

고령화율（65세 이상）: 2020년 26.1%→2050년 34.7%

Okayama (岡山県)의 다른 시구정촌

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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.

Naka Population Projection Table (2020–2050)

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

YearPopulationvs 2020Type
2020149,328—Census
2025149,426▲ +0.1%Projection
2030148,406▼ -0.6%Projection
2035146,680▼ -1.8%Projection
2040144,256▼ -3.4%Projection
2045141,183▼ -5.5%Projection
2050137,611▼ -7.8%Projection

About Naka

Overview

Naka (岡山市中区) is a municipality in Okayama, Japan, with a population of 149,328 as of 2020.

Population Projection of Naka

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Naka's population is expected to reach 148,406 by 2030 (-0.6%), 144,256 by 2040 (-3.4%), and 137,611 by 2050 (-7.8%). A modest population change is expected.

Aging Rate of Naka

The aging rate (percentage of residents aged 65 and over) is 26.1% as of 2020 and is projected to rise to 34.7% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #1664 out of 1916 municipalities nationwide.
  • Aging rate in 2050: Ranked #1632 out of 1916 nationwide.
  • Population size: Ranked #269 out of 1916 nationwide.
  • Related: National rankings / All municipalities in Okayama

Frequently Asked Questions

Q.What is the current population of Naka, Okayama?
A.According to the 2020 national census, Naka has a population of 149,328.
Q.What is the population of Naka in 2026?
A.Naka's population in 2026 is estimated at approximately 149,222. This is an interpolated reference value between the 2020 census (149,328) and the IPSS projection for 2030 (148,406).
Q.What is the projected population of Naka in the future?
A.According to IPSS projections, Naka's population is expected to be 148,406 in 2030, 144,256 in 2040, and 137,611 in 2050.
Q.What is the population decline rate of Naka?
A.Over the 30 years from 2020 to 2050, Naka's population is projected to change by -7.8%. The 10-year change is -0.6% and the 20-year change is -3.4%.
Q.Why is the population of Naka 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 Naka, the share of residents aged 65+ is projected to rise from 26.1% to 34.7% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Naka?
A.Naka's aging rate (percentage aged 65 and over) is 26.1% as of 2020, projected to rise to 34.7% 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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