Alto Sano, Las Marías, Puerto Rico

Alto Sano is a barrio in the municipality of Las Marías, Puerto Rico. Its population in 2010 was 179.

History
Alto Sano was in Spain's gazetteers until Puerto Rico was ceded by Spain in the aftermath of the Spanish–American War under the terms of the Treaty of Paris of 1898 and became an unincorporated territory of the United States. In 1899, the United States Department of War conducted a census of Puerto Rico finding that the population of Alto Sano barrio was 885.

Sectors
Barrios (which are, in contemporary times, roughly comparable to minor civil divisions) in turn are further subdivided into smaller local populated place areas/units called sectores (sectors in English). The types of sectores may vary, from normally sector to urbanización to reparto to barriada to residencial, among others.

The following sectors are in Alto Sano barrio:

Sector Alto Sano Interior.