Barrios de New York O

• Oakwood (5)
• Ocean Hill (13)
• Old Brookville (1)
• Old Howard Beach (1)
• Orange Lake (5)
• Outer Brighton/Fairport (26)
• Outer Irondequoit (36)
• Outer Schenectady (25)
• Outlying Eastern Suffolk (40)
• Outlying Northern Nassau (59)
• Oyster Bay Cove (1)