Barrios de Virginia O

• Oak Grove (2)
• Oakdale Farms (3)
• Oakwood (8)
• Occoquan (1)
• Ocean Air (3)
• Old Courthouse (12)
• Old Glebe (1)
• Old North Hampton (5)
• Old Southwest (7)
• Old Town (37)
• Old Town Manchester (25)
• Old Towne Petersburg (13)
• Old Towne Portsmouth (9)
• Olde Hampton (2)
• Olde Huntersville (7)
• Oregon Hill (6)
• Outer Ashburn-Sterling (10)
• Outer Greenway-Dulles (3)
• Outer Leesburg (25)
• Outer Reston-Herndon Corridor (7)
• Outlying South (4)
• Oyster Point (4)