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San Isidro, Northern Samar

San Isidro
Municipality
Municipality of San Isidro
Map of Northern Samar with San Isidro highlighted
Map of Northern Samar with San Isidro highlighted
San Isidro is located in Philippines
San Isidro
San Isidro
Location within the Philippines
Coordinates: 12°23′17″N 124°19′52″E / 12.388°N 124.331°E / 12.388; 124.331Coordinates: 12°23′17″N 124°19′52″E / 12.388°N 124.331°E / 12.388; 124.331
Country  Philippines
Region Eastern Visayas (Region VIII)
Province Northern Samar
District District of Northern Samar
Established 1954
Barangays 14
Government
 • Mayor Nanding Avila
 • Vice Mayor Wilson Tomacas
Area
 • Total 255.90 km2 (98.80 sq mi)
Population (2015)
 • Total 26,650
 • Density 100/km2 (270/sq mi)
Time zone PST (UTC+8)
ZIP code 6409
IDD:area code 55
Income class 4th

San Isidro is a fourth class municipality in the province of Northern Samar, Philippines. It is Northern Samar's border town with the province of Samar to the south. According to the 2015 census, it has a population of 26,650. The town borders with Victoria to the north.

San Isidro is a coastal a town in the south-western part of the Province of Northern Samar facing the Samar Sea. It is about 64 kilometres (40 mi) from the capital town of Catarman and approximately 54 kilometres (34 mi) north-west of Calbayog City. Its boundaries are defined by the Municipality of Victoria in the north and north-east, by the City of Calbayog in the south and southeast, the Municipality of Bobon in the east, and by Dalupiri Pass and Samar Sea in the west.

San Isidro has a total land area of 25,590 hectares (63,200 acres), of which 9088 is commercial forest, 418 is non-commercial forest, 10754 is logged cover area and rest are classified into reproduction brush land, cogon open land, mosey forest, cultivation, plantation and marsh swamp land.

The topography of the land is characterized from plains to rolling hills and steep mountain ranges. The lowlands are along the coast but in a few sections of this area, the mountains rise from 30 meters to 61 meters high above sea level. The highest elevation is Mount Soomong, which is 522 meters above sea level. The hinterlands are criss-crossed by logging roads and most of the plateaus are already developed agricultural lands.

Its rivers and creeks intersperse throughout the length and breadth of the municipality. It has ten (10) small unnavigable rivers. Majestic Mawo River traverses the eastern portion of the hinterlands finding its way at the town of Victoria before discharging into the Samar Sea. Among River has its outlet at Barangay Seven Hills, Caaguit-itan River at Barangays Alegria and Balite, San Juan River at Barangay San Juan, Palanit and Maludbalud Rivers at Barangay Palanit, Veriato River at Barangay Veriato and Caglanipao River at Barangay Caglanipao.

The Municipality does not lie along any known fault zones/lines. As to its bedrock foundations, old sediments and pyroclastics which are more stable than poorly consolidated sediments (e.g. limestone, shale or alluvial deposits) in terms of compressive strength/load bearing capacity comprise roughly 67.50% of the total municipal land area. The remaining 32.50% is composed of metamorphosed rocks, volcanic and highly crystallized rocks which are situated in areas of highest relief.


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