GEOGRAPHICAL RESOURCE AND ENDOWMENT
Ito ay may lawak na kabuuang lupain na 7.5365 hektarya. Ang barangay ay maisasama at maibibilang sa kategorya ng Urban, Lowland, Coastal at Commercial.
Zone IV belongs to the four Urban Barangays of Pinamalayan that comprised the town proper or Poblacion. In the early years, the poblacion area was a part of Barangay Panggulayan. Then, sometime in 1963, the poblacion area was separated from mother barangay and subsequently divided into four zones. Base then, PD No. 557 changed the name “Barrio” into Barangay as the basic political unit. (RA 3590 Revised Barrio Charter).