Isabel is a first income class municipality in the province of Leyte, Philippines. According to the 2010 census, it has a population of 43,593. It is bounded to the east by the municipality of Merida and to the north by the municipality of Palompon. Nearest landfall south is Ponson Island (Camotes) at about 7.2 kilometres (4.5 mi; 3.9 nmi).