About 85% of Chile's population live in urban centers, with 40% living in greater Santiago. Most have Spanish ancestry. A small, yet influential number of Irish and English immigrants came to Chile during the colonial period. German immigration began in 1848 and lasted for 90 years; the southern provinces of Valdivia, Llanquihue, and Osorno show a strong German influence. Other significant immigrant groups are Italian, Croatian, French, and Middle Eastern. About 800,000 Native Americans, mostly of the Mapuche tribe, reside in the south-central area.