| Official Name: | Media Luna |
| Settlement Type: | Barrio |
| Pushpin Map: | Caribbean |
| Pushpin Map Caption: | Location of Puerto Rico |
| Coordinates: | 18.4242°N -66.2445°W |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Commonwealth |
| Subdivision Name: |  Puerto Rico |
| Subdivision Type1: | Municipality |
| Subdivision Name1: | Toa Baja |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 5.93 |
| Area Land Sq Mi: | 5.87 |
| Area Water Sq Mi: | 0.06 |
| Population As Of: | 2010 |
| Population Note: | Source: 2010 Census |
| Population Total: | 12221 |
| Population Density Sq Mi: | 2081.9 |
| Timezone: | AST |
| Utc Offset: | -4 |
| Elevation Ft: | 26 |
| Postal Code Type: | ZIP Code |
Media Luna is a barrio in the municipality of Toa Baja, Puerto Rico. Its population in 2010 was 12,221.[2] [3] [4]
Media Luna 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 Media Luna barrio was 598.[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 Media Luna barrio:[10]
Spanish; Castilian: Brisas del Campanero II, Comunidad Las Master, Residencial Campanilla, Sector Campanilla, Sector La Vega, Sector Los Quintero, Sector Media Luna, Sector Parcelas Nuevas, Sector San José, Sector Valle Seco, Sector Villa Esperanza, Sector Villa Hostos, Urbanización Brisas del Campanero, and Spanish; Castilian: Urbanización Riberas del Plata (Las 21).