The Libertad 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 14,437. The town of San Mateo is the shire town of the Libertad Municipality.
The Libertad Municipality, according to a 2007 population estimate by the National Institute of Statistics of Venezuela, has a population of 14,720 (up from 13,597 in 2000). This amounts to 1% of the state's population. The municipality's population density is 7.2 PD/sqkm.
