Dauphin Island Police Dept Address: 1017 Desoto Ave, Dauphin Island, AL 36528 Phone: (251) 861-5523 Police Departments Other Businesses: Law Offices of Robert D Selwyn at 900 Bienville Blvd, Dauphin Island, AL 36528 Mcdermott, Edward B at 808 Infanta Pl, Dauphin Island, AL 36528 Town Of Dauphin Island at 1011 Bienville Blvd, Dauphin Island, AL 36528