The barrios of Puerto Rico are the primary legal divisions of the seventy-eight municipalities of Puerto Rico.[1] Puerto Rico's 78 municipios are divided into geographical sections called barrios (English: wards or boroughs or neighborhoods) and, as of 2010, there were 902 of them.[2][3] In the US Census a barrio sometimes includes a division called a comunidad or subbarrio. In Puerto Rico, barrios are composed of sectors. The types of sectors (sectores) may vary, from normally sector to urbanización to reparto to barriada to residencial, among others.