Nagano長野県
Ikeda 池田町
Data last updated:
Ikeda, Nagano, Japan has a population of 8,612 (2025 national census). IPSS projections estimate 8,142 by 2030 and 6,153 by 2050 (a decrease of about 34.4% from 2020), with the share of residents aged 65+ rising from 39.6% in 2020 to 51.5%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
8,612
2030
(Projection)
8,142
▼ -13.2%
2040
(Projection)
7,202
▼ -23.2%
2050
(Projection)
6,153
▼ -34.4%
Change vs. 2020 census
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Other municipalities in Nagano (長野県)
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.
Ikeda 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 | 10,610 | ▲ +13.1% | Census |
| 1985 | 10,792 | ▲ +15.0% | Census |
| 1990 | 10,521 | ▲ +12.1% | Census |
| 1995 | 10,712 | ▲ +14.2% | Census |
| 2000 | 10,658 | ▲ +13.6% | Census |
| 2005 | 10,630 | ▲ +13.3% | Census |
| 2010 | 10,329 | ▲ +10.1% | Census |
| 2015 | 9,926 | ▲ +5.8% | Census |
| 2020 | 9,382 | — | Census |
| 2025 | 8,612 | ▼ -8.2% | Census |
| 2030 | 8,142 | ▼ -13.2% | Projection |
| 2035 | 7,684 | ▼ -18.1% | Projection |
| 2040 | 7,202 | ▼ -23.2% | Projection |
| 2045 | 6,674 | ▼ -28.9% | Projection |
| 2050 | 6,153 | ▼ -34.4% | Projection |
About Ikeda
Overview
Ikeda (池田町) is a municipality in Nagano, Japan, with a population of 8,612 as of 2025.
Population Projection of Ikeda
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Ikeda's population is expected to reach 8,142 by 2030 (-13.2%), 7,202 by 2040 (-23.2%), and 6,153 by 2050 (-34.4%). A significant population decline is projected over the next three decades.
Aging Rate of Ikeda
The aging rate (percentage of residents aged 65 and over) is 39.6% as of 2020 and is projected to rise to 51.5% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Ikeda's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #913 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #464 out of 1903 nationwide.
- Population size: Ranked #1404 out of 1917 nationwide.
- Related: National rankings / All municipalities in Nagano
Earnings in Nagano (長野県): Average salary in Nagano (長野県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure