In recent years, there has been an increase in impetus for teachers' professional development. Thanks to the availability of the professional development activities which are offered both online and face to face, a growing number of English teachers began to volunteer to participate in them, which may or may not indicate that they are satisfied with their jobs. The purpose of this study is to investigate the job satisfaction levels of English teachers who work at state schools in Denizli province of Turkey. This is a quantitative study, and the data were collected by means of Minnesota Job Satisfaction Questionnaire with 50 items. 244 English teachers working in Denizli province completed the questionnaire, and the findings were analysed via descriptive analysis in SPSS. The findings revealed that overall, the participant teachers have a mediocre level of job satisfaction (M= 3,48). The findings of the study were discussed dwelling on the demographic features of the participants, and implications for teacher education institutions, policy makers, school managers have been discussed.