Japan Population Decline Simulator

Hokkaido北海道

Nanae 七飯町

Data last updated:

Nanae, Hokkaido, Japan has a population of 26,933 (2025 national census). IPSS projections estimate 25,669 by 2030 and 19,706 by 2050 (a decrease of about 28.8% from 2020), with the share of residents aged 65+ rising from 35.1% in 2020 to 48.0%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025

(Census)

26,933

2030

(Projection)

25,669

▼ -7.3%

2040

(Projection)

22,937

▼ -17.2%

2050

(Projection)

19,706

▼ -28.8%

Change vs. 2020 census

Elderly Rate (65+): 2020 35.1%→2050 48%

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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.

Nanae 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
198021,267▼ -23.2%Census
198522,607▼ -18.3%Census
199023,963▼ -13.4%Census
199527,040▼ -2.3%Census
200028,354▲ +2.4%Census
200528,424▲ +2.7%Census
201028,463▲ +2.8%Census
201528,120▲ +1.6%Census
202027,686—Census
202526,933▼ -2.7%Census
203025,669▼ -7.3%Projection
203524,399▼ -11.9%Projection
204022,937▼ -17.2%Projection
204521,339▼ -22.9%Projection
205019,706▼ -28.8%Projection

About Nanae

Overview

Nanae (七飯町) is a municipality in Hokkaido, Japan, with a population of 26,933 as of 2025.

Population Projection of Nanae

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Nanae's population is expected to reach 25,669 by 2030 (-7.3%), 22,937 by 2040 (-17.2%), and 19,706 by 2050 (-28.8%). A significant population decline is projected over the next three decades.

Aging Rate of Nanae

The aging rate (percentage of residents aged 65 and over) is 35.1% as of 2020 and is projected to rise to 48.0% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

Nanae's population decline rate exceeds the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #1099 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #686 out of 1903 nationwide.
  • Population size: Ranked #957 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Hokkaido

Earnings in Hokkaido (北海道): Average salary in Hokkaido (北海道) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure

Frequently Asked Questions

Q.What is the current population of Nanae, Hokkaido?
A.According to the 2025 national census, Nanae has a population of 26,933.
Q.What is the population of Nanae in 2026?
A.Nanae's population in 2026 is estimated at approximately 26,680. This is an interpolated reference value between the 2025 census (26,933) and the IPSS projection for 2030 (25,669).
Q.What is the projected population of Nanae in the future?
A.According to IPSS projections, Nanae's population is expected to be 25,669 in 2030, 22,937 in 2040, and 19,706 in 2050.
Q.What is the population decline rate of Nanae?
A.Over the 30 years from 2020 to 2050, Nanae's population is projected to change by -28.8%. The 10-year change is -7.3% and the 20-year change is -17.2%.
Q.Why is the population of Nanae 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 Nanae, the share of residents aged 65+ is projected to rise from 35.1% to 48.0% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Nanae?
A.Nanae's aging rate (percentage aged 65 and over) is 35.1% as of 2020, projected to rise to 48.0% 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 national census results through 2025. Future projections use the IPSS 2023 edition, which is based on the 2020 census.

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