Job Stress is considered as the pressure and tension the employees of any organization have to face during their duties due to the unnatural demands of their job. Job stress has become such a common phenomenon that almost none can deny to get experienced it. As the teachers belong to a noble profession, i.e., the profession of the Prophets, hence the researcher, in order to determine whether they also undergo job stress, conducted this survey-based, descriptive and cross-sectional study. This study was also supposed to measure the effects of demographic factors on job stress among different categories of teachers, i.e., PSTs, ESTs, and SSTs working in public sector schools in Punjab, Pakistan. Due to a shortage of time and financial resources, this study was delimited to of Faisalabad Division. The sample of this study comprised 700 respondents selected by a multi-stage proportionate stratified random sampling technique. A standardized scale was employed for determining workplace stress after taking permission. In addition to descriptive statistics, i.e., frequencies, percentages, mean scores, and standard deviations, inferential statistics, i.e., independent sample t-test and one-way ANOVA were also calculated from the collected data using SPSS 23 to test the already formulated null hypotheses of the study. Based on the study findings, it was concluded that the majority of school teachers are facing low-level job stress, whereas gender and qualification have no significant effect on job stress, but the designation has a significant effect on the job stress of teachers.