Japan Population Decline Simulator

Kanagawa神奈川県

Kawasaki 川崎市川崎区

Data last updated:

Kawasaki, Kanagawa, Japan has a population of 233,357 (2025 national census). IPSS projections estimate 230,563 by 2030 and 237,178 by 2050 (an increase of about 1.8% from 2020), with the share of residents aged 65+ rising from 22.4% in 2020 to 29.4%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025

(Census)

233,357

2030

(Projection)

230,563

▼ -1.0%

2040

(Projection)

236,733

▲ +1.6%

2050

(Projection)

237,178

▲ +1.8%

Change vs. 2020 census

Elderly Rate (65+): 2020 22.4%→2050 29.4%

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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.

Kawasaki 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
1980199,148▼ -14.5%Census
1985193,954▼ -16.7%Census
1990200,056▼ -14.1%Census
1995196,338▼ -15.7%Census
2000194,091▼ -16.7%Census
2005203,804▼ -12.5%Census
2010217,328▼ -6.7%Census
2015223,378▼ -4.1%Census
2020232,965—Census
2025233,357▲ +0.2%Census
2030230,563▼ -1.0%Projection
2035234,467▲ +0.6%Projection
2040236,733▲ +1.6%Projection
2045237,499▲ +1.9%Projection
2050237,178▲ +1.8%Projection

About Kawasaki

Overview

Kawasaki (川崎市川崎区) is a municipality in Kanagawa, Japan, with a population of 233,357 as of 2025.

Population Projection of Kawasaki

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Kawasaki's population is expected to reach 230,563 by 2030 (-1.0%), 236,733 by 2040 (+1.6%), and 237,178 by 2050 (+1.8%). Kawasaki is among the rare Japanese municipalities projected to see population growth.

Aging Rate of Kawasaki

The aging rate (percentage of residents aged 65 and over) is 22.4% as of 2020 and is projected to rise to 29.4% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #1820 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1843 out of 1903 nationwide.
  • Population size: Ranked #141 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Kanagawa

Earnings in Kanagawa (神奈川県): Average salary in Kanagawa (神奈川県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure

Frequently Asked Questions

Q.What is the current population of Kawasaki, Kanagawa?
A.According to the 2025 national census, Kawasaki has a population of 233,357.
Q.What is the population of Kawasaki in 2026?
A.Kawasaki's population in 2026 is estimated at approximately 232,798. This is an interpolated reference value between the 2025 census (233,357) and the IPSS projection for 2030 (230,563).
Q.What is the projected population of Kawasaki in the future?
A.According to IPSS projections, Kawasaki's population is expected to be 230,563 in 2030, 236,733 in 2040, and 237,178 in 2050.
Q.What is the population decline rate of Kawasaki?
A.Over the 30 years from 2020 to 2050, Kawasaki's population is projected to change by +1.8%. The 10-year change is -1.0% and the 20-year change is +1.6%.
Q.Why is the population of Kawasaki 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. Kawasaki is one of the minority of Japanese municipalities projected to grow through 2050.
Q.What is the aging rate of Kawasaki?
A.Kawasaki's aging rate (percentage aged 65 and over) is 22.4% as of 2020, projected to rise to 29.4% 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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