This study aims to determine the opinions of teachers about the innovation level of their schools. The sample of this research includes 471 teachers working in primary and secondary schools in Sinop, a city in Turkey. "Innovative School Scale" developed by Aslan and Kesik (2017) was used in order to collect data in this study. Percentage, frequency, mean, standard deviation, T-test and one-way ANOVA were performed to determine teachers' opinions about the innovation level of their schools according to the demographic variables. The findings show that the opinions of teachers about the innovation level of their schools are quite high with a level of "often" in the dimensions of innovative atmosphere, administrative support and the overall scale and with a level of "sometimes" in the organizational impediments. While the teachers' opinions indicate no significant differences regarding their genders, they show significant differences regarding their subject areas, years of teaching experience and teaching level of school. According to findings, branch teachers, teachers working in secondary schools and teachers having 21 or more years of teaching experience were found to have a higher level of opinions about the innovation level of their schools. The findings and suggestions obtained by the results are expected to contribute to the discussions and literature about increasing innovation level of schools.