Barrios de Virginia O

• Oak Grove (6)
• Oakdale (1)
• Oakdale Farms (2)
• Oakmont (1)
• Oakwood (10)
• Ocean Air (4)
• Oceana Naval Air Station (1)
• Old Courthouse (12)
• Old Dominion (3)
• Old Glebe (4)
• Old North Hampton (3)
• Old Southwest (10)
• Old Town (67)
• Old Town Harrisonburg (2)
• Old Town Manchester (25)
• Old Towne Petersburg (11)
• Old Towne Portsmouth (12)
• Olde Hampton (2)
• Olde Huntersville (6)
• Oregon Hill (6)
• Outer Ashburn-Sterling (6)
• Outer Greenway-Dulles (8)
• Outer Leesburg (55)
• Outer Reston-Herndon Corridor (14)
• Outlying South (21)
• Oxford (1)
• Oyster Point (4)