Barangay Santo Domingo

Classified as a small barangay, Barangay Santo Domingo is one of the administrative divisions of Jones in Isabela, Cagayan Valley, Philippines.

According to the 2020 Philippine census, Barangay Santo Domingo had a population of 1,445. This made it the 11th largest of 42 barangays in Jones by population, placing it in the upper half of the municipality. Residents of Barangay Santo Domingo accounted for approximately 3.17% of the total population of Jones, which stood at 45,628 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Santo Domingo moving from 1,427 residents to 1,445 residents, an intercensal change of +1.3%. The trajectory indicates a slowly expanding community. Barangay Santo Domingo is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Jones is a municipality comprising 42 barangays, and serves as the governing unit directly responsible for local services in Barangay Santo Domingo, including public health, sanitation, peace and order, and civil registration. Within the wider province of Isabela, which contains 1,055 barangays across its component cities and municipalities, Barangay Santo Domingo ranks 439th by 2020 population. Isabela is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Like every Philippine barangay, Barangay Santo Domingo 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.