Japan Population Decline Simulator

Kanagawa神奈川県

Asao 川崎市麻生区

Data last updated:

Asao, Kanagawa, Japan has a population of 180,889 (2020 national census). IPSS projections estimate 184,412 by 2030 and 189,362 by 2050 (an increase of about 4.7% from 2020), with the share of residents aged 65+ rising from 24.2% to 33.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2020

(Census)

180,889

2030

(Projection)

184,412

+1.9%

2040

(Projection)

188,784

+4.4%

2050

(Projection)

189,362

+4.7%

Elderly Rate (65+): 2020 24.2%2050 33.9%

Other municipalities in Kanagawa (神奈川県)

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.

Asao Population Projection Table (2020–2050)

Population by year, based on the national census and IPSS (2023) projections.

YearPopulationvs 2020Type
2020180,889Census
2025180,676▼ -0.1%Projection
2030184,412▲ +1.9%Projection
2035187,213▲ +3.5%Projection
2040188,784▲ +4.4%Projection
2045189,404▲ +4.7%Projection
2050189,362▲ +4.7%Projection

About Asao

Overview

Asao (川崎市麻生区) is a municipality in Kanagawa, Japan, with a population of 180,889 as of 2020.

Population Projection of Asao

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Asao's population is expected to reach 184,412 by 2030 (+1.9%), 188,784 by 2040 (+4.4%), and 189,362 by 2050 (+4.7%). Asao is among the rare Japanese municipalities projected to see population growth.

Aging Rate of Asao

The aging rate (percentage of residents aged 65 and over) is 24.2% as of 2020 and is projected to rise to 33.9% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #1870 out of 1916 municipalities nationwide.
  • Aging rate in 2050: Ranked #1675 out of 1916 nationwide.
  • Population size: Ranked #211 out of 1916 nationwide.
  • Related: National rankings / All municipalities in Kanagawa

Frequently Asked Questions

Q.What is the current population of Asao, Kanagawa?
A.According to the 2020 national census, Asao has a population of 180,889.
Q.What is the population of Asao in 2026?
A.Asao's population in 2026 is estimated at approximately 181,423. This is an interpolated reference value between the 2020 census (180,889) and the IPSS projection for 2030 (184,412).
Q.What is the projected population of Asao in the future?
A.According to IPSS projections, Asao's population is expected to be 184,412 in 2030, 188,784 in 2040, and 189,362 in 2050.
Q.What is the population decline rate of Asao?
A.Over the 30 years from 2020 to 2050, Asao's population is projected to change by +4.7%. The 10-year change is +1.9% and the 20-year change is +4.4%.
Q.Why is the population of Asao growing?
A.Municipalities with growing populations typically benefit from net in-migration driven by good access to major metropolitan areas, housing development, and family support policies. Asao is one of the minority of Japanese municipalities projected to grow through 2050.
Q.What is the aging rate of Asao?
A.Asao's aging rate (percentage aged 65 and over) is 24.2% as of 2020, projected to rise to 33.9% 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 the 2020 national census results. Future projections use the IPSS 2023 edition. Data will be updated as new census results become available.

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