Barangay Cogon

Barangay Cogon forms part of Bulusan, a municipality in Sorsogon, and is classified as a very small barangay.

According to the 2020 Philippine census, Barangay Cogon had a population of 419. This made it the 21st largest of 24 barangays in Bulusan by population, placing it among the smaller barangays of the municipality. Residents of Barangay Cogon accounted for approximately 1.75% of the total population of Bulusan, which stood at 23,932 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Cogon changed from 330 to 419, a shift of +27.0% over the five-year period. This places the barangay among those with growing populations in Bulusan. Barangay Cogon is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Bulusan is a municipality comprising 24 barangays, and serves as the governing unit directly responsible for local services in Barangay Cogon, including public health, sanitation, peace and order, and civil registration. Within the wider province of Sorsogon, which contains 541 barangays across its component cities and municipalities, Barangay Cogon ranks 506th by 2020 population. Sorsogon is classified as a 2nd by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Like every Philippine barangay, Barangay Cogon is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.