Saitama埼玉県
Nagatoro 長瀞町
Data last updated:
Nagatoro, Saitama, Japan has a population of 6,112 (2025 national census). IPSS projections estimate 5,736 by 2030 and 3,685 by 2050 (a decrease of about 45.9% from 2020), with the share of residents aged 65+ rising from 39.6% in 2020 to 58.1%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
6,112
2030Projection
5,736
▼ -15.7%
2040Projection
4,668
▼ -31.4%
2050Projection
3,685
▼ -45.9%
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.
Nagatoro 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 | 8,908 | ▲ +30.9% | Census |
| 1985 | 8,963 | ▲ +31.7% | Census |
| 1990 | 8,906 | ▲ +30.8% | Census |
| 1995 | 8,809 | ▲ +29.4% | Census |
| 2000 | 8,560 | ▲ +25.8% | Census |
| 2005 | 8,352 | ▲ +22.7% | Census |
| 2010 | 7,908 | ▲ +16.2% | Census |
| 2015 | 7,324 | ▲ +7.6% | Census |
| 2020 | 6,807 | — | Census |
| 2025 | 6,112 | ▼ -10.2% | Census |
| 2030 | 5,736 | ▼ -15.7% | Projection |
| 2035 | 5,201 | ▼ -23.6% | Projection |
| 2040 | 4,668 | ▼ -31.4% | Projection |
| 2045 | 4,157 | ▼ -38.9% | Projection |
| 2050 | 3,685 | ▼ -45.9% | Projection |
About Nagatoro
Overview
Nagatoro (長瀞町) is a municipality in Saitama, Japan, with a population of 6,112 as of 2025.
Population Projection of Nagatoro
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Nagatoro's population is expected to reach 5,736 by 2030 (-15.7%), 4,668 by 2040 (-31.4%), and 3,685 by 2050 (-45.9%). A significant population decline is projected over the next three decades.
Aging Rate of Nagatoro
The aging rate (percentage of residents aged 65 and over) is 39.6% as of 2020 and is projected to rise to 58.1% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Nagatoro is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #488 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #166 out of 1903 nationwide.
- Population size: Ranked #1523 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