The San Juan de Capistrano Municipality is one of the 21 municipalities (municipios) that makes up the eastern Venezuelan state of Anzoátegui and, according to the 2011 census by the National Institute of Statistics of Venezuela, the municipality has a population of 9,047. The town of Boca de Uchire is the shire town of the San Juan de Capistrano Municipality.
The San Juan de Capistrano Municipality, according to a 2007 population estimate by the National Institute of Statistics of Venezuela, has a population of 8,975 (up from 7,998 in 2000). This amounts to 0.6% of the state's population. The municipality's population density is 72.97 PD/sqkm.
