Illinois Neighborhoods O

• O'Hare (10)
• Old Farm (3)
• Old Irving Park (15)
• Old Town (141)
• Old Town Chicago (1)
• Old Towne (1)
• Outer Loves Park/Machesney Park (10)
• Outer Northwest Rockford (22)
• Outer Rock Island/Moline (11)
• Outer South Rockford (21)