Lubsko
| Lubsko | |
|---|---|
| Lubsko castle | |
| Coordinates: 51°47′N 14°58′E / 51.783°N 14.967°E | |
| Country | Poland | 
| Voivodeship | Lubusz | 
| County | Żary | 
| Gmina | Lubsko | 
| Established | before 1258 | 
| Town rights | 1283 | 
| Government | |
| • Mayor | Janusz Dudojć | 
| Area | |
|  • Total | 12.56 km2 (4.85 sq mi) | 
| Highest elevation | 122 m (400 ft) | 
| Lowest elevation | 65 m (213 ft) | 
| Population  (2019-06-30) | |
|  • Total | 13,921 | 
| • Density | 1,100/km2 (2,900/sq mi) | 
| Time zone | UTC+1 (CET) | 
| • Summer (DST) | UTC+2 (CEST) | 
| Postal code | 68-300 | 
| Area code | +48 68 | 
| Car plates | FZA | 
| Climate | Cfb | 
| Website | https://lubsko.pl | 
Lubsko [ˈlupskɔ] (German: Sommerfeld, Lower Sorbian: Žemŕ), formerly Zemsz, is a town in Żary County in the Lubusz Voivodeship in western Poland. It is the administrative seat of the Gmina Lubsko and has a population of 13,921 (2019).