Guaniquilla is a coastal barrio in the municipality of Aguada, Puerto Rico. Its population in 2010 was 2,663.
Pico de Piedra beach and Guayabo River are located in Guaniquilla where an annual festival is held around June 24.
Guaniquilla was in Spain's gazetteers until Puerto Rico was ceded by Spain in the aftermath of the SpanishâÂÂAmerican 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 combined population of Rosario (not a current barrio of Aguada), California (not a current barrio of Aguada) and Guaniquilla (spelled Guanaguilla) barrios was 1,135.
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 Guaniquilla barrio:
, and .
In Guaniquilla barrio is part of the Aguada urban zone.