Miyagi宮城県
Shichigahama 七ヶ浜町
Data last updated:
Shichigahama, Miyagi, Japan has a population of 16,780 (2025 national census). IPSS projections estimate 16,045 by 2030 and 11,250 by 2050 (a decrease of about 38.0% from 2020), with the share of residents aged 65+ rising from 31.2% in 2020 to 48.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
16,780
2030
(Projection)
16,045
▼ -11.5%
2040
(Projection)
13,669
▼ -24.6%
2050
(Projection)
11,250
▼ -38.0%
Change vs. 2020 census
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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.
Shichigahama 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 | 16,393 | ▼ -9.6% | Census |
| 1985 | 18,106 | ▼ -0.1% | Census |
| 1990 | 19,523 | ▲ +7.7% | Census |
| 1995 | 20,668 | ▲ +14.0% | Census |
| 2000 | 21,131 | ▲ +16.5% | Census |
| 2005 | 21,068 | ▲ +16.2% | Census |
| 2010 | 20,416 | ▲ +12.6% | Census |
| 2015 | 18,652 | ▲ +2.9% | Census |
| 2020 | 18,132 | — | Census |
| 2025 | 16,780 | ▼ -7.5% | Census |
| 2030 | 16,045 | ▼ -11.5% | Projection |
| 2035 | 14,876 | ▼ -18.0% | Projection |
| 2040 | 13,669 | ▼ -24.6% | Projection |
| 2045 | 12,456 | ▼ -31.3% | Projection |
| 2050 | 11,250 | ▼ -38.0% | Projection |
About Shichigahama
Overview
Shichigahama (七ヶ浜町) is a municipality in Miyagi, Japan, with a population of 16,780 as of 2025.
Population Projection of Shichigahama
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Shichigahama's population is expected to reach 16,045 by 2030 (-11.5%), 13,669 by 2040 (-24.6%), and 11,250 by 2050 (-38.0%). A significant population decline is projected over the next three decades.
Aging Rate of Shichigahama
The aging rate (percentage of residents aged 65 and over) is 31.2% as of 2020 and is projected to rise to 48.9% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Shichigahama's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #791 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #633 out of 1903 nationwide.
- Population size: Ranked #1142 out of 1917 nationwide.
- Related: National rankings / All municipalities in Miyagi
Earnings in Miyagi (宮城県): Average salary in Miyagi (宮城県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure