Ehime愛媛県
Uchiko 内子町
Data last updated:
Uchiko, Ehime, Japan has a population of 13,733 (2025 national census). IPSS projections estimate 12,552 by 2030 and 7,971 by 2050 (a decrease of about 48.0% from 2020), with the share of residents aged 65+ rising from 40.9% in 2020 to 52.0%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
13,733
2030
(Projection)
12,552
▼ -18.1%
2040
(Projection)
10,097
▼ -34.1%
2050
(Projection)
7,971
▼ -48.0%
Change vs. 2020 census
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Other municipalities in Ehime (愛媛県)
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.
Uchiko 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 | 25,336 | ▲ +65.4% | Census |
| 1985 | 24,079 | ▲ +57.2% | Census |
| 1990 | 22,687 | ▲ +48.1% | Census |
| 1995 | 21,678 | ▲ +41.5% | Census |
| 2000 | 20,782 | ▲ +35.6% | Census |
| 2005 | 19,620 | ▲ +28.1% | Census |
| 2010 | 18,045 | ▲ +17.8% | Census |
| 2015 | 16,742 | ▲ +9.3% | Census |
| 2020 | 15,322 | — | Census |
| 2025 | 13,733 | ▼ -10.4% | Census |
| 2030 | 12,552 | ▼ -18.1% | Projection |
| 2035 | 11,269 | ▼ -26.5% | Projection |
| 2040 | 10,097 | ▼ -34.1% | Projection |
| 2045 | 9,000 | ▼ -41.3% | Projection |
| 2050 | 7,971 | ▼ -48.0% | Projection |
About Uchiko
Overview
Uchiko (内子町) is a municipality in Ehime, Japan, with a population of 13,733 as of 2025.
Population Projection of Uchiko
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Uchiko's population is expected to reach 12,552 by 2030 (-18.1%), 10,097 by 2040 (-34.1%), and 7,971 by 2050 (-48.0%). A significant population decline is projected over the next three decades.
Aging Rate of Uchiko
The aging rate (percentage of residents aged 65 and over) is 40.9% as of 2020 and is projected to rise to 52.0% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Uchiko is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #409 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #427 out of 1903 nationwide.
- Population size: Ranked #1223 out of 1917 nationwide.
- Related: National rankings / All municipalities in Ehime
Earnings in Ehime (愛媛県): Average salary in Ehime (愛媛県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure