Outline of business
- Seya Ward General Affairs Division
- Seya Ward Ward Administration Promotion Division
- Seya Ward Regional Promotion Division
- Seya Ward Family Registry Division
- Seya Ward Tax Division
- Seya Ward Ward's Treasurer's Office
- Seya Ward Health and Welfare Division
- Seya Ward Health Sanitation Division
- Seya Ward Elderly and Disabled Support Division
- Seya Ward Children and Families Support Division
- Seya Ward life support section
- Seya Ward Insurance and Pension Division
- Seya, Seya-ku engineering works office
