Catbalogan is a coastal component city in the province of Samar. It serves as the provincial capital.

The city has a land area of 274.22 square kilometers or 105.88 square miles which constitutes 4.53% of Samar’s total area. Its population as determined by the 2020 Census was 106,440. This represented 13.42% of the total population of Samar province, or 2.34% of the overall population of the Eastern Visayas region. Based on these figures, the population density is computed at 388 inhabitants per square kilometer or 1,005 inhabitants per square mile.