- Country: North Korea
- Population: 100,000
- Latitude: 39° 14.78' N (39.24639°)
- Longitude: 125° 52.32' E (125.87194°)
- Elevation: 53 m/174 ft. above sea level
- Time zone: Asia/Pyongyang (UTC +08:30); DST not observed
- Alternate names: Sain-ni, Sainjang, Sanchon, Shajimjō, Shajinjō, Shaninjō
- Alternate names: P'yongsong, P’yŏngsŏng, Sain-ni, Sainjang, Sanchon, Shajimjo, Shajimjō, Shajinjo, Shajinjō, Shaninjo, Shaninjō
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