일본 인구 감소 시뮬레이터

Nagano長野県

Neba 根羽村

Data last updated:

Neba, Nagano, Japan has a population of 784 (2025 national census). IPSS projections estimate 639 by 2030 and 378 by 2050 (a decrease of about 55.6% from 2020), with the share of residents aged 65+ rising from 52.5% in 2020 to 49.5%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025년실적

784명

2030년추계

639명

▼ -25.0%

2040년추계

496명

▼ -41.8%

2050년추계

378명

▼ -55.6%

Change vs. 2020 census

고령화율(65세 이상): 2020년 52.5%→2050년 49.5%

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Nagano (長野県)의 다른 시구정촌

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.

Neba 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
19801,773▲ +108.1%Census
19851,722▲ +102.1%Census
19901,599▲ +87.7%Census
19951,522▲ +78.6%Census
20001,380▲ +62.0%Census
20051,253▲ +47.1%Census
20101,129▲ +32.5%Census
2015970▲ +13.8%Census
2020852—Census
2025784▼ -8.0%Census
2030639▼ -25.0%Projection
2035560▼ -34.3%Projection
2040496▼ -41.8%Projection
2045434▼ -49.1%Projection
2050378▼ -55.6%Projection

About Neba

Overview

Neba (根羽村) is a municipality in Nagano, Japan, with a population of 784 as of 2025.

Population Projection of Neba

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Neba's population is expected to reach 639 by 2030 (-25.0%), 496 by 2040 (-41.8%), and 378 by 2050 (-55.6%). The town is projected to lose more than half its population over 30 years.

Aging Rate of Neba

The aging rate (percentage of residents aged 65 and over) is 52.5% as of 2020 and is projected to rise to 49.5% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #152 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #592 out of 1903 nationwide.
  • Population size: Ranked #1888 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Nagano

Nagano (長野県)의 소득 수준: Nagano (長野県)의 평균 연봉(연령·성별·기업 규모별)jpsalary / 후생노동성 임금구조 기본통계조사

Frequently Asked Questions

Q.What is the current population of Neba, Nagano?
A.According to the 2025 national census, Neba has a population of 784.
Q.What is the population of Neba in 2026?
A.Neba's population in 2026 is estimated at approximately 755. This is an interpolated reference value between the 2025 census (784) and the IPSS projection for 2030 (639).
Q.What is the projected population of Neba in the future?
A.According to IPSS projections, Neba's population is expected to be 639 in 2030, 496 in 2040, and 378 in 2050.
Q.What is the population decline rate of Neba?
A.Over the 30 years from 2020 to 2050, Neba's population is projected to change by -55.6%. The 10-year change is -25.0% and the 20-year change is -41.8%.
Q.Why is the population of Neba 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 Neba, the share of residents aged 65+ is projected to rise from 52.5% to 49.5% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Neba?
A.Neba's aging rate (percentage aged 65 and over) is 52.5% as of 2020, projected to rise to 49.5% 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 national census results through 2025. Future projections use the IPSS 2023 edition, which is based on the 2020 census.

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