Trenque Lauquen Partido
Trenque Lauquen 
    Partido de Trenque Lauquen  | |
|---|---|
location of Trenque Lauquen Partido in Buenos Aires Province  | |
| Coordinates: 35°58′S 62°41′W / 35.967°S 62.683°W | |
| Country | Argentina | 
| Established | April 12, 1876 | 
| Founded by | Conrado Excelso Villegas | 
| Seat | Trenque Lauquen | 
| Government | |
| • Mayor | Miguel Fernández (UCR) | 
| Area | |
 • Total  | 5,500 km2 (2,100 sq mi) | 
| Population | |
 • Total  | 40,181 | 
| • Density | 7.3/km2 (19/sq mi) | 
| Demonym | trenquelauquenche | 
| Postal Code | B6400  | 
| IFAM | |
| Area Code | 02392 | 
| Patron saint | Nuestra Señora del Rosario | 
| Website | trenquelauquen.gov.ar | 
Trenque Lauquen is a subdivision (partido) of the Buenos Aires Province, Argentina, 446 km (277 mi) to the west of the city of Buenos Aires. The main town is Trenque Lauquen.