Chile has a population of over 17 million people, with the majority (95.4%) being of European and Mestizo descent. The Mapuche people are the largest indigenous group, making up around 500,000 of the population. Chileans consider themselves to have Spanish backgrounds, though ethnic differences are expressed through physical appearance rather than skin color. The Mapuche face social and economic segregation, working in low paying jobs with little prestige. Chilean society is stratified by class, with upper and middle classes generally comprised of those with European heritage, while the lower classes have more Mestizo and indigenous backgrounds. Spatial segregation in cities, school names and accents are symbols of this social stratification.