Barrios de Washington O

• Oakbrook (1)
• Ogden (9)
• Old Evergreen Highway (2)
• Old West Side (1)
• Olde Town (2)
• Olympic West (2)
• Opportunity (5)
• Orchards (2)
• Orchards Area (33)
• Otis Orchards-East Farms (1)
• Outer Bremerton (18)
• Outer Mercer Island (10)
• Outer Silverdale (15)
• Outlying Issaquah (10)
• Outlying Lynnwood-Snohomish (39)
• Outlying McChord (13)
• Outlying Newcastle (6)
• Outlying Puyallup (29)
• Outlying Vancouver (26)
• Overlake (24)