Measuring administrative performance aims to determine the effectiveness of school management. For decades, academicians and scholars have not come up with a consensus on this determination including which variables be included. In this study, principals' administrative performance was looked into utilizing Fayol's principles of management and further determining their work attitudes. In retrospect, school principals perform varying roles and functions in the continuous educational process. In order to attain quality education is to have quality school principals. This study investigated the administrative performance of school principals in a progressive school division of El Salvador city, Misamis Oriental, Northern Mindanao, Philippines. Respondents included 15 elementary school principals who rated their management practices and work attitudes. Their answers were validated by the 136 randomly selected teachers who evaluated the administrative performance of the principals. A normative, descriptive method and correlation were employed. A questionnaire determined their administrative performance, including practices and work attitudes. Relevant results revealed "scalar chain and security of personnel" came out as top management practices of the school heads. Other vital results point to the "Environmental" attitude of the principals, and teachers' evaluation indicated that the principals manifested "above performance" rating in the areas of public relations and community involvement. There is a significant relationship between the principals' management practices when correlated with their work attitudes, and this is identified as Fayol's principle of "authority." The study recommends that as school managers, principals should foster a good relationship not only with the teachers under their care but also with the parents, and other stakeholders.