Barrios de Wisconsin O

• Oak Grove (1)
• Old North Milwaukee (14)
• Olde Norwood (2)
• Orchard Ridge (5)
• Outer Appleton (55)
• Outer Brown Deer (3)
• Outer City of Sheboygan (7)
• Outer Eastern Green Bay (2)
• Outer Middleton (20)
• Outer Sun Prairie (32)
• Outer Verona (36)