Saitama埼玉県
Namegawa 滑川町
Data last updated:
Namegawa, Saitama, Japan has a population of 19,911 (2025 national census). IPSS projections estimate 20,785 by 2030 and 21,904 by 2050 (an increase of about 11.0% from 2020), with the share of residents aged 65+ rising from 23.4% in 2020 to 31.2%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
19,911
2030
(Projection)
20,785
▲ +5.3%
2040
(Projection)
21,712
▲ +10.0%
2050
(Projection)
21,904
▲ +11.0%
Change vs. 2020 census
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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.
Namegawa Population Table (1980–2050)
Population by year: national census results (restated to current municipal boundaries) and IPSS (2023) projections based on the 2020 census.
| Year | Population | vs 2020 | Type |
|---|---|---|---|
| 1980 | 9,295 | ▼ -52.9% | Census |
| 1985 | 10,406 | ▼ -47.3% | Census |
| 1990 | 11,566 | ▼ -41.4% | Census |
| 1995 | 12,484 | ▼ -36.7% | Census |
| 2000 | 12,836 | ▼ -34.9% | Census |
| 2005 | 15,434 | ▼ -21.8% | Census |
| 2010 | 17,323 | ▼ -12.2% | Census |
| 2015 | 18,212 | ▼ -7.7% | Census |
| 2020 | 19,732 | — | Census |
| 2025 | 19,911 | ▲ +0.9% | Census |
| 2030 | 20,785 | ▲ +5.3% | Projection |
| 2035 | 21,356 | ▲ +8.2% | Projection |
| 2040 | 21,712 | ▲ +10.0% | Projection |
| 2045 | 21,874 | ▲ +10.9% | Projection |
| 2050 | 21,904 | ▲ +11.0% | Projection |
About Namegawa
Overview
Namegawa (滑川町) is a municipality in Saitama, Japan, with a population of 19,911 as of 2025.
Population Projection of Namegawa
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Namegawa's population is expected to reach 20,785 by 2030 (+5.3%), 21,712 by 2040 (+10.0%), and 21,904 by 2050 (+11.0%). Namegawa is among the rare Japanese municipalities projected to see population growth.
Aging Rate of Namegawa
The aging rate (percentage of residents aged 65 and over) is 23.4% as of 2020 and is projected to rise to 31.2% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Namegawa stands out as one of the few Japanese municipalities with continued population growth.
National and Prefectural Rank
- Population decline rate: Ranked #1890 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1805 out of 1903 nationwide.
- Population size: Ranked #1078 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