Municipality of San Guillermo
Location
Map of Isabela showing the location of San Guillermo.
Government
Region	Cagayan Valley (Region II)
Province	Isabela
District	3rd District, Isabela
Barangays	26
Income class	4th class; rural
Mayor	Edgar N. Guyud
ZIP Code	3308
Physical characteristics
Area	325.49 km²
Population      Total	16,865

San Guillermo is a 4th class municipality in the province of Isabela, Philippines. According to the latest census, it has a population of 16,865 people in 2,549 households.

[edit] Barangays

San Guillermo is politically subdivided into 26 barangays.

[edit] External links

• Philippine Standard Geographic Code
• 1995 Philippine Census Information
• 2000 Philippine Census Information
• 2007 Philippine Census Information
• Municipality of San Guillermo

Coordinates: 16°46′01″N 121°48′00″E / 16.767°N 121.800°E / 16.767; 121.800