|— Town and Commune —|
|Coordinates (city): Coordinates:|
|• Alcalde||Guillermo Vásquez Veroiza (PPD)|
|• Total||3,914.2 km2 (1,511.3 sq mi)|
|Elevation||842 m (2,762 ft)|
|Population (2002 Census)|
|• Density||2.6/km2 ( 6.8/sq mi)|
|Time zone||CLT  (UTC-4)|
|• Summer (DST)||CLST  (UTC-3)|
|Area code(s)||56 +|
|Website||Municipality of Lonquimay|
It is the terminus of an abandoned 1,676 mm (5 ft 6 in) broad gauge railway project which supporters cited as the most practical railway route through the Andes to Argentina, but which lacks a link between Lonquimay and Zapala in Argentina; revival of the project was announced in 2005 and progress begun within Chile. The line includes Chile's longest tunnel measuring 4,563 m (4,990 yd).
According to the 2002 census of the National Statistics Institute, Lonquimay spans an area of 3,914.2 km2 (1,511 sq mi) and has 10,237 inhabitants (5,414 men and 4,823 women). Of these, 3,435 (33.6%) lived in urban areas and 6,802 (66.4%) in rural areas. The population grew by 12.5% (1,138 persons) between the 1992 and 2002 censuses.
As a commune, Lonquimay is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years. The 2008-2012 alcalde is Guillermo Vásquez Veroiza (PPD).
Within the electoral divisions of Chile, Lonquimay is represented in the Chamber of Deputies by Enrique Estay (UDI) and Fuad Chahín (PDC) as part of the 49th electoral district, (together with Victoria, Curacautín, Melipeuco, Vilcún, Lautaro, Perquenco and Galvarino). The commune is represented in the Senate by Alberto Espina Otero (RN) and Jaime Quintana Leal (PPD) as part of the 14th senatorial constituency (Araucanía-North).
See also 
- (Spanish) "Asociación Chilena de Municipalidades". Retrieved 23 February 2011.
- (Spanish) "Municipality of Lonquimay". Retrieved 23 February 2011.
- (Spanish) "National Statistics Institute". Retrieved 13 December 2010.
- "Chile Time". WorldTimeZones.org. Retrieved 2010-07-29.
- "Chile Summer Time". WorldTimeZones.org. Retrieved 2010-07-29.