| First Letter | County(s) | Population | Answer | % Correct |
|---|---|---|---|---|
| C | Linn | 134,758 | Cedar Rapids | 100%
|
| D | Polk | 208,084 | Des Moines | 100%
|
| D | Dubuque | 58,359 | Dubuque | 100%
|
| I | Johnson | 76,186 | Iowa City | 100%
|
| W | Black Hawk | 66,160 | Waterloo | 100%
|
| A | Story | 65,152 | Ames | 90%
|
| C | Black Hawk | 40,760 | Cedar Falls | 90%
|
| D | Scott | 99,489 | Davenport | 90%
|
| M | Muscatine | 23,071 | Muscatine | 90%
|
| S | Woodbury | 85,694 | Sioux City | 90%
|
| A | Polk | 78,412 | Ankeny | 80%
|
| B | Scott | 40,346 | Bettendorf | 80%
|
| C | Clinton | 24,102 | Clinton | 80%
|
| F | Webster | 24,409 | Fort Dodge | 80%
|
| W | Polk | 74,395 | West Des Moines | 80%
|
| B | Boone | 12,392 | Boone | 70%
|
| C | Pottawattamie | 62,138 | Council Bluffs | 70%
|
| I | Warren | 16,164 | Indianola | 70%
|
| M | Linn | 42,622 | Marion | 70%
|
| M | Cerro Gordo | 26,664 | Mason City | 70%
|
| U | Polk | 47,495 | Urbandale | 70%
|
| C | Carroll | 10,071 | Carroll | 60%
|
| C | Johnson | 24,438 | Coralville | 60%
|
| G | Poweshiek | 9,429 | Grinnell | 60%
|
| J | Polk | 24,992 | Johnston | 60%
|
| O | Wapello | 25,116 | Ottumwa | 60%
|
| P | Marion | 11,055 | Pella | 60%
|
| C | Polk | 19,239 | Clive | 50%
|
| G | Polk | 16,869 | Grimes | 50%
|
| K | Lee | 9,265 | Keokuk | 50%
|
| M | Marshall | 27,577 | Marshalltown | 50%
|
| N | Jasper | 15,576 | Newton | 50%
|
| N | Johnson | 21,908 | North Liberty | 50%
|
| W | Dallas | 36,488 | Waukee | 50%
|
| B | Des Moines | 23,320 | Burlington | 40%
|
| F | Lee | 9,872 | Fort Madison | 40%
|
| L | Plymouth | 10,629 | Le Mars | 40%
|
| M | Henry | 8,131 | Mount Pleasant | 40%
|
| O | Mahaska | 11,388 | Oskaloosa | 40%
|
| S | Sioux | 8,739 | Sioux Center | 40%
|
| S | Buena Vista | 11,552 | Storm Lake | 40%
|
| A | Polk | 23,047 | Altoona | 30%
|
| B | Polk | 9,972 | Bondurant | 30%
|
| F | Jefferson | 9,200 | Fairfield | 30%
|
| P | Dallas | 8,058 | Perry | 30%
|
| P | Polk | 12,567 | Pleasant Hill | 30%
|
| W | Bremer | 10,661 | Waverly | 30%
|
| D | Crawford | 7,956 | Denison | 20%
|
| N | Warren | 16,175 | Norwalk | 20%
|
| S | Clay | 11,549 | Spencer | 10%
|