| Letter | Population | Answer | % Correct |
|---|---|---|---|
| C | 136,467 | Cedar Rapids | 86%
|
| D | 101,009 | Davenport | 86%
|
| I | 74,596 | Iowa City | 86%
|
| S | 85,617 | Sioux City | 64%
|
| A | 70,287 | Ankeny | 50%
|
| W | 69,792 | West Des Moines | 50%
|
| B | 39,327 | Bettendorf | 41%
|
| M | 41,703 | Marion | 36%
|
| U | 45,923 | Urbandale | 32%
|
| G | 15,949 | Grimes | 23%
|
| H | 7,147 | Hiawatha | 23%
|
| J | 24,195 | Johnston | 23%
|
| K | 9,792 | Keokuk | 23%
|
| Q | 573 | Quasqueton | 23%
|
| R | 5,582 | Red Oak | 23%
|
| F | 24,912 | Fort Dodge | 18%
|
| L | 10,572 | Le Mars | 18%
|
| N | 20,875 | North Liberty | 18%
|
| O | 25,350 | Ottumwa | 18%
|
| P | 10,860 | Pleasant Hill | 18%
|
| Z | 539 | Zearing | 18%
|
| E | 6,745 | Eldridge | 14%
|
| V | 4,931 | Vinton | 14%
|
| Y | 264 | Yale | 14%
|
| T | 5,282 | Tiffin | 5%
|