日本人口减少模拟器

Nagano長野県

Hiraya 平谷村

Data last updated:

Hiraya, Nagano, Japan has a population of 353 (2025 national census). IPSS projections estimate 273 by 2030 and 155 by 2050 (a decrease of about 59.9% from 2020), with the share of residents aged 65+ rising from 33.9% in 2020 to 45.2%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年

(实际)

353人

2030年

(预测)

273人

▼ -29.5%

2040年

(预测)

209人

▼ -46.0%

2050年

(预测)

155人

▼ -59.9%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 33.9%→2050年 45.2%

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输入年龄,即可查看您50、60、70、80岁时平谷村的人口。

岁

Nagano (長野県)的其他市区町村

数据来源

  • 日本政府统计综合窗口(e-Stat)(https://www.e-stat.go.jp/)
  • 国立社会保障・人口问题研究所「日本地区别未来推计人口(令和5年推计)」

※本服务使用e-Stat的API功能,但服务内容不受日本政府保证。

Hiraya 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
1980657▲ +69.8%Census
1985635▲ +64.1%Census
1990617▲ +59.4%Census
1995660▲ +70.5%Census
2000712▲ +84.0%Census
2005688▲ +77.8%Census
2010563▲ +45.5%Census
2015484▲ +25.1%Census
2020387—Census
2025353▼ -8.8%Census
2030273▼ -29.5%Projection
2035241▼ -37.7%Projection
2040209▼ -46.0%Projection
2045175▼ -54.8%Projection
2050155▼ -59.9%Projection

About Hiraya

Overview

Hiraya (平谷村) is a municipality in Nagano, Japan, with a population of 353 as of 2025.

Population Projection of Hiraya

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Hiraya's population is expected to reach 273 by 2030 (-29.5%), 209 by 2040 (-46.0%), and 155 by 2050 (-59.9%). The town is projected to lose more than half its population over 30 years.

Aging Rate of Hiraya

The aging rate (percentage of residents aged 65 and over) is 33.9% as of 2020 and is projected to rise to 45.2% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #71 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #876 out of 1903 nationwide.
  • Population size: Ranked #1909 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Nagano

Nagano (長野県)的收入水平: Nagano (長野県)的平均年收入(按年龄、性别、企业规模)jpsalary / 厚生劳动省 工资结构基本统计调查

Frequently Asked Questions

Q.What is the current population of Hiraya, Nagano?
A.According to the 2025 national census, Hiraya has a population of 353.
Q.What is the population of Hiraya in 2026?
A.Hiraya's population in 2026 is estimated at approximately 337. This is an interpolated reference value between the 2025 census (353) and the IPSS projection for 2030 (273).
Q.What is the projected population of Hiraya in the future?
A.According to IPSS projections, Hiraya's population is expected to be 273 in 2030, 209 in 2040, and 155 in 2050.
Q.What is the population decline rate of Hiraya?
A.Over the 30 years from 2020 to 2050, Hiraya's population is projected to change by -59.9%. The 10-year change is -29.5% and the 20-year change is -46.0%.
Q.Why is the population of Hiraya 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 Hiraya, the share of residents aged 65+ is projected to rise from 33.9% to 45.2% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Hiraya?
A.Hiraya's aging rate (percentage aged 65 and over) is 33.9% as of 2020, projected to rise to 45.2% 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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