Talcahuano is a port city and commune in the Biobío Region of Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

. It is part of the Greater Concepción

Greater Concepción

Gran Concepción is the second largest conurbation in Chile, after Greater Santiago with 1,013,856 inhabitants. According to the National Statistics Institute , the population projection for 2012 is 1,019,775 inhabitants....

 conurbation. Talcahuano is located in the south of the Central Zone

Zona Central, Chile

Zona central is one of the five natural regions into which CORFO divided continental Chile in 1950. It is home to a majority of the Chilean population and includes the three largest metropolitan areas- Santiago, Valparaíso, and Concepción...

 of Chile.
Together with ten other municipalities, it forms part of the Concepción Province

Concepción Province

Concepción Province may refer to*Concepción Province, Chile*Concepción Province, Peru...

, which in turn is one of four provinces that forms the VIII Region of Biobío Region.
According to the 2002 census

Census

A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common...

 of the National Statistics Institute

National Statistics Institute (Chile)

The National Statistics Institute of Chile is a state-run organization of the Government of Chile, created in the second half of the 19th century and tasked with performing a general census of population and housing, then collecting, producing and publishing official demographic statistics of...

, Talcahuano spans an area of 145.8 sqkm and has 250,348 inhabitants (121,778 men and 128,570 women).