Japan Population Decline Simulator

Nagano長野県

Takamori 高森町

Data last updated:

Takamori, Nagano, Japan has a population of 12,112 (2025 national census). IPSS projections estimate 11,894 by 2030 and 10,206 by 2050 (a decrease of about 20.3% from 2020), with the share of residents aged 65+ rising from 32.6% in 2020 to 41.6%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025

(Census)

12,112

2030

(Projection)

11,894

▼ -7.2%

2040

(Projection)

11,030

▼ -13.9%

2050

(Projection)

10,206

▼ -20.3%

Change vs. 2020 census

Elderly Rate (65+): 2020 32.6%→2050 41.6%

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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.

Takamori 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
198011,488▼ -10.3%Census
198512,022▼ -6.2%Census
199012,232▼ -4.5%Census
199512,252▼ -4.4%Census
200012,528▼ -2.2%Census
200512,976▲ +1.3%Census
201013,216▲ +3.2%Census
201513,080▲ +2.1%Census
202012,811—Census
202512,112▼ -5.5%Census
203011,894▼ -7.2%Projection
203511,442▼ -10.7%Projection
204011,030▼ -13.9%Projection
204510,637▼ -17.0%Projection
205010,206▼ -20.3%Projection

About Takamori

Overview

Takamori (高森町) is a municipality in Nagano, Japan, with a population of 12,112 as of 2025.

Population Projection of Takamori

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Takamori's population is expected to reach 11,894 by 2030 (-7.2%), 11,030 by 2040 (-13.9%), and 10,206 by 2050 (-20.3%). A significant population decline is projected over the next three decades.

Aging Rate of Takamori

The aging rate (percentage of residents aged 65 and over) is 32.6% as of 2020 and is projected to rise to 41.6% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

Takamori's population decline rate exceeds the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #1342 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1122 out of 1903 nationwide.
  • Population size: Ranked #1283 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Nagano

Earnings in Nagano (長野県): Average salary in Nagano (長野県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure

Frequently Asked Questions

Q.What is the current population of Takamori, Nagano?
A.According to the 2025 national census, Takamori has a population of 12,112.
Q.What is the population of Takamori in 2026?
A.Takamori's population in 2026 is estimated at approximately 12,068. This is an interpolated reference value between the 2025 census (12,112) and the IPSS projection for 2030 (11,894).
Q.What is the projected population of Takamori in the future?
A.According to IPSS projections, Takamori's population is expected to be 11,894 in 2030, 11,030 in 2040, and 10,206 in 2050.
Q.What is the population decline rate of Takamori?
A.Over the 30 years from 2020 to 2050, Takamori's population is projected to change by -20.3%. The 10-year change is -7.2% and the 20-year change is -13.9%.
Q.Why is the population of Takamori 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 Takamori, the share of residents aged 65+ is projected to rise from 32.6% to 41.6% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Takamori?
A.Takamori's aging rate (percentage aged 65 and over) is 32.6% as of 2020, projected to rise to 41.6% 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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