Barangay Don Mariano Marcos (Pob.)

Classified as a small barangay, Barangay Don Mariano Marcos (Pob.) is one of the administrative divisions of Jaen in Nueva Ecija, Central Luzon, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Don Mariano Marcos (Pob.) had a population of 1,433. This made it the 24th largest of 27 barangays in Jaen by population, placing it among the smaller barangays of the municipality. Residents of Barangay Don Mariano Marcos (Pob.) accounted for approximately 1.81% of the total population of Jaen, which stood at 79,189 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Don Mariano Marcos (Pob.) changed from 1,396 to 1,433, a shift of +2.7% over the five-year period. This places the barangay among those with growing populations in Jaen. The Philippine Statistics Authority classifies Barangay Don Mariano Marcos (Pob.) as urban, reflecting the density and built-up character of the area.

Jaen is a municipality comprising 27 barangays, and serves as the governing unit directly responsible for local services in Barangay Don Mariano Marcos (Pob.), including public health, sanitation, peace and order, and civil registration. Within the wider province of Nueva Ecija, which contains 849 barangays across its component cities and municipalities, Barangay Don Mariano Marcos (Pob.) ranks 608th by 2020 population. Nueva Ecija 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 Don Mariano Marcos (Pob.) 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.