Seiyo
Contents: City (-shi)
The population development of Seiyo as well as related information and services (weather, Wikipedia, Google, images).
| Name | Native | Population Census 1995-10-01 | Population Census 2000-10-01 | Population Census 2005-10-01 | Population Census 2010-10-01 | Population Census 2015-10-01 | Population Census 2020-10-01 | Population Census 2025-10-01 | |
|---|---|---|---|---|---|---|---|---|---|
| Seiyo | 西予市 | 49,022 | 47,217 | 44,948 | 42,080 | 38,919 | 35,388 | 31,551 | → |
Source: Statistics Bureau Japan.
Explanation: The 2025 census results are preliminary.
Further information about the population structure:
| Gender (C 2025) | |
|---|---|
| Males | 14,998 |
| Females | 16,553 |
| Age Groups (C 2020) | |
|---|---|
| 0-17 years | 4,614 |
| 18-64 years | 15,084 |
| 65+ years | 15,578 |
| Age Distribution (C 2020) | |
|---|---|
| 90+ years | 1,591 |
| 80-89 years | 4,683 |
| 70-79 years | 6,166 |
| 60-69 years | 5,706 |
| 50-59 years | 4,144 |
| 40-49 years | 3,878 |
| 30-39 years | 2,808 |
| 20-29 years | 1,501 |
| 10-19 years | 2,651 |
| 0-9 years | 2,148 |
| Citizenship (C 2020) | |
|---|---|
| Japan | 35,049 |
| Foreign Citizenship | 274 |