A few facts about Seirō
- Seirō has a population of about 14,000.
- It's part of the Niigata region.
- Tokyo, the largest city in Japan, is about 258 km away.
- The nearest bigger city is Shibata, about 8 km away.
- Towns nearby: Agano (17 km), Niigata (20 km) and Niitsu-honchō (23 km).