Hanover Police Department 207 Jefferson St Hanover, IL 61041 Phone : (815) 591-2100 Business Category Police Departments Hanover Village Of--police Dept, Non-emergency Rock Island, IL 61201 Phone : (815) 591-2100 Business Category Police Departments Government Offices & Public Schools Police--hanover Hanover, IL 61041 Phone : (815) 591-2100 Business Category Police Departments