There are 49 cities in Illinois that start with the letter O.
City | 2024 Pop. |
---|---|
O'Fallon | 31,855 |
Oak Brook | 8,014 |
Oak Forest | 25,811 |
Oak Grove | 462 |
Oak Lawn | 54,929 |
Oak Park | 51,282 |
Oak Run | 694 |
Oakbrook Terrace | 2,671 |
Oakdale | 194 |
Oakford | 228 |
Oakland | 719 |
Oakwood | 1,271 |
Oakwood Hills | 2,048 |
Oblong | 1,336 |
Oconee | 137 |
Odell | 978 |
Odin | 901 |
Ogden | 708 |
Oglesby | 3,619 |
Ohio | 458 |
Ohlman | 107 |
Okawville | 1,346 |
Old Mill Creek | 161 |
Old Ripley | 80 |
Old Shawneetown | 107 |
Olive Branch | 530 |
Olivet | 115 |
Olmsted | 266 |
Olney | 8,452 |
Olympia Fields | 4,470 |
Omaha | 190 |
Onarga | 1,268 |
Oneida | 668 |
Opdyke | 260 |
Ophiem | 222 |
Oquawka | 1,062 |
Orangeville | 733 |
Oreana | 847 |
Oregon | 3,549 |
Orient | 319 |
Orion | 1,717 |
Orland Hills | 6,483 |
Orland Park | 56,584 |
Osco | 139 |
Oswego | 37,857 |
Ottawa | 18,721 |
Otterville | 82 |
Owaneco | 205 |
Oxville | 27 |