Pilar is part of the municipalities that comprises Bataan. It is a fourth class municipality with over 43,000 people.
Pilar produces a sufficient supply of rice, corn, vegetables, rootcrops and legumes. Poultry are also abundant in the area such as chicken, hogs and ducks as well as freshwater fishers. Bamboo, cogon and different vines can be sourced from hilly portions of Pilar while gravel and sand is abundant in Barangay Nagwaling, Alauli, Pantingan, Diwa and Liyang.
Trading and agri-related enterprises such as poultry and fishpond operation are the leading business activities in Pilar.