Japan Population Decline Simulator

Chiba千葉県

Abiko 我孫子市

Data last updated:

Abiko, Chiba, Japan has a population of 131,006 (2025 national census). IPSS projections estimate 124,907 by 2030 and 112,074 by 2050 (a decrease of about 14.1% from 2020), with the share of residents aged 65+ rising from 31.1% in 2020 to 40.5%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025

(Census)

131,006

2030

(Projection)

124,907

▼ -4.3%

2040

(Projection)

117,816

▼ -9.7%

2050

(Projection)

112,074

▼ -14.1%

Change vs. 2020 census

Elderly Rate (65+): 2020 31.1%→2050 40.5%

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Other municipalities in Chiba (千葉県)

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.

Abiko 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
1980101,061▼ -22.6%Census
1985111,659▼ -14.4%Census
1990120,628▼ -7.6%Census
1995124,257▼ -4.8%Census
2000127,733▼ -2.1%Census
2005131,205▲ +0.5%Census
2010134,017▲ +2.7%Census
2015131,606▲ +0.8%Census
2020130,510—Census
2025131,006▲ +0.4%Census
2030124,907▼ -4.3%Projection
2035121,326▼ -7.0%Projection
2040117,816▼ -9.7%Projection
2045114,724▼ -12.1%Projection
2050112,074▼ -14.1%Projection

About Abiko

Overview

Abiko (我孫子市) is a municipality in Chiba, Japan, with a population of 131,006 as of 2025.

Population Projection of Abiko

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Abiko's population is expected to reach 124,907 by 2030 (-4.3%), 117,816 by 2040 (-9.7%), and 112,074 by 2050 (-14.1%). A modest population change is expected.

Aging Rate of Abiko

The aging rate (percentage of residents aged 65 and over) is 31.1% as of 2020 and is projected to rise to 40.5% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

Abiko's demographic trajectory is similar to the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #1504 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1210 out of 1903 nationwide.
  • Population size: Ranked #316 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Chiba

Earnings in Chiba (千葉県): Average salary in Chiba (千葉県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure

Frequently Asked Questions

Q.What is the current population of Abiko, Chiba?
A.According to the 2025 national census, Abiko has a population of 131,006.
Q.What is the population of Abiko in 2026?
A.Abiko's population in 2026 is estimated at approximately 129,786. This is an interpolated reference value between the 2025 census (131,006) and the IPSS projection for 2030 (124,907).
Q.What is the projected population of Abiko in the future?
A.According to IPSS projections, Abiko's population is expected to be 124,907 in 2030, 117,816 in 2040, and 112,074 in 2050.
Q.What is the population decline rate of Abiko?
A.Over the 30 years from 2020 to 2050, Abiko's population is projected to change by -14.1%. The 10-year change is -4.3% and the 20-year change is -9.7%.
Q.Why is the population of Abiko 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 Abiko, the share of residents aged 65+ is projected to rise from 31.1% to 40.5% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Abiko?
A.Abiko's aging rate (percentage aged 65 and over) is 31.1% as of 2020, projected to rise to 40.5% 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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