Lowland soils found in the City are mostly alluvial in formation and are usually fertile soils; hence they are classified as prime agricultural lands. This type of soil formation is suitable for irrigation and has potential for good yields of rice. Upland soils are usually formed in place from underlying bedrocks. They are usually thin compared to alluvial deposits and are also prone to erosion in the absence of vegetation cover.
In terms of soil types, there are nine kinds found distributed in City: Bolinao Clay, Tagburos Clay, Tapul Clay Loam, Guimbalaon Clay, Bay Clay Loam, Babuyan Silt Clay Loam, Babuyan Clay, Malaglag Clay, and Hydrosol.
