| County | State | % Correct |
|---|---|---|
| Ida | Iowa | 90%
|
| Idaho | Idaho | 90%
|
| Indiana | Pennsylvania | 86%
|
| Iowa | Iowa | 81%
|
| Iowa | Wisconsin | 81%
|
| Inyo | California | 67%
|
| Iron | Michigan | 62%
|
| Iron | Missouri | 62%
|
| Iron | Utah | 62%
|
| Iron | Wisconsin | 62%
|
| Iroquois | Illinois | 52%
|
| Island | Washington | 52%
|
| Ionia | Michigan | 48%
|
| Irwin | Georgia | 48%
|
| Ingham | Michigan | 43%
|
| Itasca | Minnesota | 43%
|
| Imperial | California | 38%
|
| Iosco | Michigan | 38%
|
| Iberia | Louisiana | 33%
|
| Iredell | North Carolina | 29%
|
| Isabella | Michigan | 29%
|
| Itawamba | Mississippi | 29%
|
| Iberville | Louisiana | 24%
|
| Independence | Arkansas | 24%
|
| Indian River | Florida | 24%
|
| Irion | Texas | 24%
|
| Isanti | Minnesota | 24%
|
| Izard | Arkansas | 24%
|
| Issaquena | Mississippi | 19%
|
| Isle of Wight | Virginia | 14%
|