Japan Population Decline Simulator

Saitama埼玉県

Saitama さいたま市

Data last updated:

Saitama, Saitama, Japan has a population of 1,344,865 (2025 national census). IPSS projections estimate 1,362,700 by 2030 and 1,339,475 by 2050 (an increase of about 1.2% from 2020), with the share of residents aged 65+ rising from 23.6% in 2020 to 32.2%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025

(Census)

1,344,865

2030

(Projection)

1,362,700

▲ +2.9%

2040

(Projection)

1,361,675

▲ +2.8%

2050

(Projection)

1,339,475

▲ +1.2%

Change vs. 2020 census

Elderly Rate (65+): 2020 23.6%→2050 32.2%

Enter your age

See the population of さいたま市 when you turn 50, 60, 70 and 80.

years old

Other municipalities in Saitama (埼玉県)

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.

Saitama 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
1980879,291▼ -33.6%Census
1985922,757▼ -30.3%Census
19901,007,569▼ -23.9%Census
19951,078,545▼ -18.5%Census
20001,133,300▼ -14.4%Census
20051,176,314▼ -11.2%Census
20101,222,434▼ -7.7%Census
20151,263,979▼ -4.5%Census
20201,324,025—Census
20251,344,865▲ +1.6%Census
20301,362,700▲ +2.9%Projection
20351,365,486▲ +3.1%Projection
20401,361,675▲ +2.8%Projection
20451,352,396▲ +2.1%Projection
20501,339,475▲ +1.2%Projection

About Saitama

Overview

Saitama (さいたま市) is a municipality in Saitama, Japan, with a population of 1,344,865 as of 2025.

Population Projection of Saitama

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Saitama's population is expected to reach 1,362,700 by 2030 (+2.9%), 1,361,675 by 2040 (+2.8%), and 1,339,475 by 2050 (+1.2%). Saitama is among the rare Japanese municipalities projected to see population growth.

Aging Rate of Saitama

The aging rate (percentage of residents aged 65 and over) is 23.6% as of 2020 and is projected to rise to 32.2% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #1812 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1759 out of 1903 nationwide.
  • Population size: Ranked #10 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Saitama

Earnings in Saitama (埼玉県): Average salary in Saitama (埼玉県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure

Frequently Asked Questions

Q.What is the current population of Saitama, Saitama?
A.According to the 2025 national census, Saitama has a population of 1,344,865.
Q.What is the population of Saitama in 2026?
A.Saitama's population in 2026 is estimated at approximately 1,348,432. This is an interpolated reference value between the 2025 census (1,344,865) and the IPSS projection for 2030 (1,362,700).
Q.What is the projected population of Saitama in the future?
A.According to IPSS projections, Saitama's population is expected to be 1,362,700 in 2030, 1,361,675 in 2040, and 1,339,475 in 2050.
Q.What is the population decline rate of Saitama?
A.Over the 30 years from 2020 to 2050, Saitama's population is projected to change by +1.2%. The 10-year change is +2.9% and the 20-year change is +2.8%.
Q.Why is the population of Saitama 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. Saitama is one of the minority of Japanese municipalities projected to grow through 2050.
Q.What is the aging rate of Saitama?
A.Saitama's aging rate (percentage aged 65 and over) is 23.6% as of 2020, projected to rise to 32.2% 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.

Similar-Sized Municipalities in Saitama

Municipalities with Similar Trends

Share this page