This current study is with the specific objective of assessing the influence of Universal Basic Education (UBE) Facilities on pupil enrolment, teacher population and their classroom ratio in the teaching and learning process in Ogun State public primary schools of Nigeria. This was achieved by comparing schools with the UBE facilities and those without these facilities. To carry out this study, data on pupil and teacher population were gathered using a self-designed School Records Collection Sheets (SRCS) from thirty-two (32) public primary schools selected for study. Eight (8) schools (four (4) with UBE facilities and four (4) without the facilities) each were picked from the four (4) administrative areas of the state (these are Ijebu, Egba, Yewa and Remo) using purposive and simple random sampling techniques. Findings of the study indicate that there were significant positive influence of UBE facilities on pupil enrolment but an insignificant levels of influence of UBE facilities on teacher population and teacher - pupil ratio. Recommendations were therefore provided on the findings of this study.