| Population | County | Answer | % Correct |
|---|---|---|---|
| 177,965 | Polk | Des Moines | 100%
|
| 74,549 | Scott | Davenport | 98%
|
| 72,296 | Linn | Cedar Rapids | 97%
|
| 27,212 | Johnson | Iowa City | 93%
|
| 83,991 | Woodbury | Sioux City | 93%
|
| 22,898 | Story | Ames | 82%
|
| 49,671 | Dubuque | Dubuque | 82%
|
| 45,429 | Pottawattamie | Council Bluffs | 78%
|
| 65,198 | Black Hawk | Waterloo | 78%
|
| 30,613 | Des Moines | Burlington | 63%
|
| 25,115 | Webster | Fort Dodge | 63%
|
| 14,334 | Black Hawk | Cedar Falls | 57%
|
| 16,144 | Lee | Keokuk | 53%
|
| 30,379 | Clinton | Clinton | 52%
|
| 33,631 | Wapello | Ottumwa | 52%
|
| 27,980 | Cerro Gordo | Mason City | 50%
|
| 14,954 | Lee | Fort Madison | 40%
|
| 19,041 | Muscatine | Muscatine | 40%
|
| 19,821 | Marshall | Marshalltown | 35%
|
| 12,164 | Boone | Boone | 20%
|