Most people speak Waray-Waray, though Cebuano is also widely understood, being spoken in the municipality of San Isidro and the island municipalities of San Antonio and San Vicente. A third language Inabaknon is spoken in the island of Capul.

Northern Samar is bounded on the north by the San Bernardino Stait, on the east by the Pacific Ocean, on the west by the Samar Sea, and on the south by Western Samar. Its total land area is 3,498 sq. km.

The province is composed largely of low and extremely rugged hills and small lowland areas. It also has small and discontinuous areas along the coasts and its rivers are usually accompanied by alluvial plains and valleys. The province is endowed with relatively rich and fertile soil that most crops can grow on it.

Municipalities