This descriptive-correlational study aimed at ascertaining the social subsystem--personnel's social integration skills, organizational structure, organizational climate, and organizational management of public secondary schools in Iloilo City and its influence on institutional stability and the teacher's attitude towards peer. Data were obtained from the 240 randomly selected teachers of seven public high schools in Iloilo City using three researcher-made data gathering instruments. Statistical tools employed were: frequency counts, percentage analysis, means, standard deviations, the One-Way analysis of Variance, and the Pearson's r. Alpha level for all inferential tests was set at .05. Results revealed that the teachers perception of personnel's social integration skills profile was "strong" organizational structure profile "structured, organizational climate profile "warm", organizational management profile "effective". The teachers generally perceived institutional stability as "stable and they had a "positive" attitude towards their peers when taken as an entire group. They differed significantly in their perception of institutional stability when grouped according to their perception of personnel's social integration skills, organizational structure, organizational structure, organizational climate and organizational management and in their attitude towards their peers when grouped according to their perception of personnel's social integration skills. Positive and significant relationships were found between the teachers perception of instructional stability and their attitude toward their peers.