Despite the Government of Ethiopia has implemented an Integrated Disease Surveillance Response (IDSR) System for nearly three decades, Non-Communicable Diseases (NCDs) especially hypertension, were recently emphasized. As a result, Ethiopia has been piloting a hypertension sentinel surveillance system in a few sites since 2019. We aimed to evaluate whether the existing sentinel hypertension surveillance system in two selected sites in Mojo City Oromia Ethiopia was operating efficiently and effectively.  