Japan Population Decline Simulator

Shimane島根県

Ama 海士町

Data last updated:

Ama, Shimane, Japan has a population of 2,347 (2025 national census). IPSS projections estimate 1,972 by 2030 and 1,605 by 2050 (a decrease of about 29.2% from 2020), with the share of residents aged 65+ rising from 39.9% in 2020 to 34.6%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025Census

2,347

2030Projection

1,972

▼ -13.0%

2040Projection

1,766

▼ -22.1%

2050Projection

1,605

▼ -29.2%

Change vs. 2020 census

Elderly Rate (65+): 2020 39.9%→2050 34.6%

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Other municipalities in Shimane (島根県)

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.

Ama 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
19803,537▲ +56.0%Census
19853,339▲ +47.3%Census
19903,119▲ +37.6%Census
19952,857▲ +26.0%Census
20002,672▲ +17.9%Census
20052,581▲ +13.9%Census
20102,374▲ +4.7%Census
20152,353▲ +3.8%Census
20202,267—Census
20252,347▲ +3.5%Census
20301,972▼ -13.0%Projection
20351,856▼ -18.1%Projection
20401,766▼ -22.1%Projection
20451,680▼ -25.9%Projection
20501,605▼ -29.2%Projection

About Ama

Overview

Ama (海士町) is a municipality in Shimane, Japan, with a population of 2,347 as of 2025.

Population Projection of Ama

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Ama's population is expected to reach 1,972 by 2030 (-13.0%), 1,766 by 2040 (-22.1%), and 1,605 by 2050 (-29.2%). A significant population decline is projected over the next three decades.

Aging Rate of Ama

The aging rate (percentage of residents aged 65 and over) is 39.9% as of 2020 and is projected to rise to 34.6% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

Ama's population decline rate exceeds the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #1084 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1638 out of 1903 nationwide.
  • Population size: Ranked #1779 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Shimane

Earnings in Shimane (島根県): Average salary in Shimane (島根県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure

Frequently Asked Questions

Q.What is the current population of Ama, Shimane?
A.According to the 2025 national census, Ama has a population of 2,347.
Q.What is the population of Ama in 2026?
A.Ama's population in 2026 is estimated at approximately 2,272. This is an interpolated reference value between the 2025 census (2,347) and the IPSS projection for 2030 (1,972).
Q.What is the projected population of Ama in the future?
A.According to IPSS projections, Ama's population is expected to be 1,972 in 2030, 1,766 in 2040, and 1,605 in 2050.
Q.What is the population decline rate of Ama?
A.Over the 30 years from 2020 to 2050, Ama's population is projected to change by -29.2%. The 10-year change is -13.0% and the 20-year change is -22.1%.
Q.Why is the population of Ama 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 Ama, the share of residents aged 65+ is projected to rise from 39.9% to 34.6% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Ama?
A.Ama's aging rate (percentage aged 65 and over) is 39.9% as of 2020, projected to rise to 34.6% 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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