This study explored the relationship between school level and the psychosocial construct of a growth mindset school culture. Data was collected on the What's My School Mindset (WMSM) Survey from a stratified random sample of PK-12 faculty and administrators (n = 347) in 30 schools across a large northwestern state. The overarching research question was, "Is there a relationship between school level and a school's growth mindset?" Results revealed a significant decrease in the WMSM mean between elementary school level and high school level participant self-reports. Therefore, the results of this study could be used to create opportunities for faculty dialogue and reflection to change perspectives, inform future practice, provide realistic ways to implement change by using research-based evidence to challenge assumptions, and give sound reasons for new practices.