Barangay Baybayin, Rosario, Batangas, is a "growing lowland community" classified as "rural, agricultural, agri-industrial, and commercial". Covering a land area of "810.175 hectares", it is strategically divided as follows:

• 25% - Households
• 24% - Agriculture
• 22% - Agri-Industrial Purposes
• 18% - Commercial Buildings
• 11% - Idle Land (No Crops)

Geographically, **Barangay Baybayin** is located **6 kilometers from the Rosario municipal hall**. It is bordered by:

• North: Barangay San Carlos
• South: Barangay Maligaya
• East: Barangay Natu
• West: Barangay Tiquiwan

Barangay Baybayin comprises "2.17% of Rosario’s total population", reflecting its important role in the municipality.