Zainsk
| Zainsk Заинск | |
|---|---|
| Location of Zainsk | |
| Coordinates: 55°18′N 52°01′E / 55.300°N 52.017°E | |
| Country | Russia | 
| Federal subject | Tatarstan | 
| Founded | 1652–1656 | 
| Town status since | 1978 | 
| Elevation | 90 m (300 ft) | 
| Population | |
|  • Total | 41,803 | 
| • Subordinated to | town of republic significance of Zainsk | 
| • Capital of | town of republic significance of Zainsk, Zainsky District | 
| • Municipal district | Zainsky Municipal District | 
| • Urban settlement | Zainsk Urban Settlement | 
| • Capital of | Zainsky Municipal District, Zainsk Urban Settlement | 
| Time zone | UTC+3 (MSK ) | 
| Postal code(s) | 423520–423524 | 
| OKTMO ID | 92627101001 | 
Zainsk (Russian: Заи́нск is a town in the Republic of Tatarstan, Russia, located on the Stepnoy Zay River (Kama's tributary), 287 kilometers (178 mi) east of Kazan. Population: 39,739 (2021 census).