| Official Name: | Río Arriba |
| Settlement Type: | Barrio |
| Pushpin Map: | Caribbean |
| Pushpin Map Caption: | Location of Puerto Rico |
| Coordinates: | 18.3412°N -66.6839°W |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Commonwealth |
| Subdivision Name: |  Puerto Rico |
| Subdivision Type1: | Municipality |
| Subdivision Name1: | Arecibo |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 8.84 |
| Area Land Sq Mi: | 8.44 |
| Area Water Sq Mi: | 0.40 |
| Population As Of: | 2010 |
| Population Note: | Source: 2010 Census |
| Population Total: | 858 |
| Population Density Sq Mi: | 101.7 |
| Timezone: | AST |
| Utc Offset: | -4 |
| Elevation Ft: | 1119 |
| Postal Code Type: | ZIP Code |
Río Arriba is a barrio in the municipality of Arecibo, Puerto Rico. Its population in 2010 was 858.[2] [3] [4]
Río Arriba was in Spain's gazetteers[5] 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 Río Arriba barrio was 1,709.[6]
Barrios (which are, in contemporary times, roughly comparable to minor civil divisions)[7] 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.[8] [9]
The following sectors are in Río Arriba barrio:[10] [11]
Spanish; Castilian: Sector Central Hidroeléctrica, Sector Cuerpo de Paz, Sector Dos Bocas, Sector El Valle, Sector Jobo, Sector La Canina I y II, Sector Los Chorros, and Spanish; Castilian: Sector Vacupey.
On September 27, 2017 it was reported that a week after Hurricane Maria hit Puerto Rico, roads into and out of Río Arriba remained blocked and inaccessible. Residents were clearing the way with machetes and working with rescue crew to evacuate people who needed dialysis and emergency medical help.[12]