Geography · lists
Cities and towns in Illinois that start with O
The full list of cities and towns in Illinois starting with O: 15 names, taken from the 397 answers to “Name a city or town in Illinois” in Icillion.
All 15 cities and towns in Illinois that start with O
- Oak Brook
- Oak Lawn
- Oak Park
- Oblong
- Odin
- OFallon
- Oglesby
- Okawville
- Olney
- Omaha
- Oquawka
- Orion
- Orland Park
- Oswego
- Ottawa
About this list
- O is the 14th most common first letter in this list: 15 of the 397 cities and towns in Illinois (4%).
- Shortest: “Odin”. Longest: “Orland Park”.
- 4 names have more than one word.
Quick answers
- How many cities and towns in Illinois start with O?
- 15 of the 397 cities and towns in Illinois in Icillion start with O, for example Oak Park, Orland Park and Oak Brook.
- What is the longest name among cities and towns in Illinois that start with O?
- The longest is “Orland Park” and the shortest is “Odin”.
More lists that start with O
Play geography trivia nowAll 397 cities and towns in Illinois, A to Z
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