| City | State | Population | % Correct |
|---|---|---|---|
| Oklahoma City | OK | 712,919 | 99%
|
| Omaha | NE | 489,265 | 97%
|
| Orlando | FL | 334,854 | 97%
|
| Oakland | CA | 443,554 | 94%
|
| Odessa | TX | 119,748 | 77%
|
| Ogden | UT | 88,656 | 76%
|
| Overland Park | KS | 202,893 | 75%
|
| Olympia | WA | 56,271 | 68%
|
| Orange | CA | 137,941 | 67%
|
| Oshkosh | WI | 67,242 | 66%
|
| Oxnard | CA | 200,616 | 66%
|
| Olathe | KS | 149,035 | 65%
|
| Orem | UT | 96,646 | 63%
|
| Ontario | CA | 185,285 | 61%
|
| Oceanside | CA | 170,941 | 59%
|
| Owensboro | KY | 60,675 | 58%
|
| Ocala | FL | 70,251 | 55%
|
| O'Fallon | MO | 95,355 | 50%
|
| Oak Park | IL | 52,947 | 39%
|
| Oak Lawn | IL | 56,531 | 32%
|
| Orland Park | IL | 58,020 | 29%
|
| Ocoee | FL | 51,269 | 21%
|