Kagawa香川県
Kotohira 琴平町
Data last updated:
Kotohira, Kagawa, Japan has a population of 7,617 (2025 national census). IPSS projections estimate 7,053 by 2030 and 4,597 by 2050 (a decrease of about 45.7% from 2020), with the share of residents aged 65+ rising from 41.2% in 2020 to 50.7%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
7,617
2030Projection
7,053
▼ -16.7%
2040Projection
5,769
▼ -31.9%
2050Projection
4,597
▼ -45.7%
Change vs. 2020 census
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Other municipalities in Kagawa (香川県)
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.
Kotohira 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 | 13,807 | ▲ +63.0% | Census |
| 1985 | 13,323 | ▲ +57.3% | Census |
| 1990 | 12,632 | ▲ +49.2% | Census |
| 1995 | 12,002 | ▲ +41.7% | Census |
| 2000 | 11,335 | ▲ +33.9% | Census |
| 2005 | 10,747 | ▲ +26.9% | Census |
| 2010 | 9,967 | ▲ +17.7% | Census |
| 2015 | 9,186 | ▲ +8.5% | Census |
| 2020 | 8,468 | — | Census |
| 2025 | 7,617 | ▼ -10.0% | Census |
| 2030 | 7,053 | ▼ -16.7% | Projection |
| 2035 | 6,391 | ▼ -24.5% | Projection |
| 2040 | 5,769 | ▼ -31.9% | Projection |
| 2045 | 5,153 | ▼ -39.1% | Projection |
| 2050 | 4,597 | ▼ -45.7% | Projection |
About Kotohira
Overview
Kotohira (琴平町) is a municipality in Kagawa, Japan, with a population of 7,617 as of 2025.
Population Projection of Kotohira
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Kotohira's population is expected to reach 7,053 by 2030 (-16.7%), 5,769 by 2040 (-31.9%), and 4,597 by 2050 (-45.7%). A significant population decline is projected over the next three decades.
Aging Rate of Kotohira
The aging rate (percentage of residents aged 65 and over) is 41.2% as of 2020 and is projected to rise to 50.7% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Kotohira is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #502 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #519 out of 1903 nationwide.
- Population size: Ranked #1441 out of 1917 nationwide.
- Related: National rankings / All municipalities in Kagawa
Earnings in Kagawa (香川県): Average salary in Kagawa (香川県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure