Iowa voted for Al Gore in 2000 by a slim margin, but in 2004, the incubent George W. Bush won with a 0.67% lead.

Adair Kerry 43.1% 1,844 Bush 56.1% 2,402 Other 0.7% 32

Adams Kerry 42.0% 977 Bush 56.6% 1,317 Other 1.3% 31

Allamakee Kerry 48.8% 3,449 Bush 50.0% 3,530 Other 1.2% 83

Appanoose Kerry 47.5% 3,063 Bush 51.8% 3,340 Other 0.7% 47

Audubon Kerry 44.8% 1,608 Bush 54.5% 1,958 Other 0.7% 26

Benton Kerry 50.0% 6,747 Bush 49.3% 6,658 Other 0.7% 96

Black Hawk Kerry 55.4% 35,392 Bush 43.9% 28,046 Other 0.7% 469

Boone Kerry 50.2% 7,027 Bush 49.0% 6,870 Other 0.8% 112

Bremer Kerry 47.1% 6,025 Bush 52.2% 6,665 Other 0.7% 89

Buchanan Kerry 53.5% 5,608 Bush 45.8% 4,797 Other 0.7% 70

Buena Vista Kerry 41.5% 3,520 Bush 57.6% 4,887 Other 1.0% 83

Butler Kerry 40.1% 3,001 Bush 59.1% 4,417 Other 0.8% 57

Calhoun Kerry 40.5% 2,243 Bush 58.7% 3,255 Other 0.8% 44

Carroll Kerry 44.6% 4,689 Bush 54.8% 5,762 Other 0.7% 73

Cass Kerry 35.5% 2,679 Bush 63.6% 4,796 Other 0.9% 68

Cedar Kerry 49.0% 4,747 Bush 50.2% 4,869 Other 0.8% 78

Cerro Gordo Kerry 54.5% 13,372 Bush 44.7% 10,960 Other 0.8% 184

Cherokee Kerry 44.0% 2,988 Bush 55.3% 3,758 Other 0.7% 50

Chickasaw Kerry 54.5% 3,708 Bush 44.7% 3,040 Other 0.9% 58

Clarke Kerry 50.9% 2,323 Bush 48.2% 2,200 Other 0.9% 43

Clay Kerry 41.3% 3,547 Bush 57.0% 4,898 Other 1.7% 143

Clayton Kerry 51.7% 4,736 Bush 47.0% 4,312 Other 1.3% 120

Clinton Kerry 56.0% 13,813 Bush 43.2% 10,666 Other 0.8% 205

Crawford Kerry 44.5% 3,220 Bush 54.6% 3,955 Other 0.9% 67

Dallas Kerry 41.5% 10,917 Bush 57.7% 15,183 Other 0.7% 193

Davis Kerry 44.2% 1,731 Bush 54.8% 2,148 Other 1.0% 39

Decatur Kerry 46.3% 1,859 Bush 52.1% 2,088 Other 1.6% 64

Delaware Kerry 45.9% 4,227 Bush 53.3% 4,908 Other 0.7% 65

Des Moines Kerry 59.7% 12,456 Bush 39.4% 8,221 Other 0.9% 197

Dickinson Kerry 43.3% 4,140 Bush 55.9% 5,337 Other 0.8% 76

Dubuque Kerry 56.5% 26,561 Bush 42.7% 20,100 Other 0.8% 382

Emmet Kerry 46.6% 2,405 Bush 52.3% 2,697 Other 1.0% 54

Fayette Kerry 49.9% 5,185 Bush 49.3% 5,128 Other 0.8% 79

Floyd Kerry 53.3% 4,349 Bush 45.9% 3,745 Other 0.9% 73

Franklin Kerry 42.4% 2,340 Bush 56.7% 3,128 Other 1.0% 53

Fremont Kerry 38.6% 1,510 Bush 60.4% 2,362 Other 1.0% 39

Greene Kerry 48.1% 2,459 Bush 51.2% 2,618 Other 0.7% 36

Grundy Kerry 34.8% 2,386 Bush 64.7% 4,429 Other 0.5% 34

Guthrie Kerry 43.6% 2,614 Bush 55.5% 3,325 Other 0.9% 55

Hamilton Kerry 46.7% 3,895 Bush 52.4% 4,367 Other 0.9% 73

Hancock Kerry 42.1% 2,484 Bush 57.0% 3,368 Other 0.9% 53

Hardin Kerry 44.9% 4,015 Bush 54.5% 4,875 Other 0.7% 59

Harrison Kerry 37.8% 2,906 Bush 60.9% 4,680 Other 1.2% 94

Henry Kerry 43.6% 4,127 Bush 55.2% 5,220 Other 1.2% 110

Howard Kerry 55.7% 2,614 Bush 43.2% 2,028 Other 1.2% 55

Humboldt Kerry 40.1% 2,146 Bush 59.1% 3,162 Other 0.8% 42

Ida Kerry 37.5% 1,415 Bush 62.1% 2,342 Other 0.5% 17

Iowa Kerry 45.4% 3,841 Bush 53.7% 4,544 Other 0.8% 69

Jackson Kerry 56.5% 5,656 Bush 42.4% 4,242 Other 1.1% 113

Jasper Kerry 52.0% 10,430 Bush 47.2% 9,462 Other 0.8% 170

Jefferson Kerry 54.2% 4,490 Bush 44.1% 3,648 Other 1.7% 143

Johnson Kerry 64.0% 41,847 Bush 34.7% 22,715 Other 1.2% 811

Jones Kerry 50.7% 5,054 Bush 48.4% 4,834 Other 0.9% 90

Keokuk Kerry 41.9% 2,294 Bush 56.9% 3,119 Other 1.2% 67

Kossuth Kerry 44.6% 4,132 Bush 54.5% 5,042 Other 0.9% 84

Lee Kerry 56.8% 10,152 Bush 41.8% 7,472 Other 1.3% 234

Linn Kerry 54.6% 60,442 Bush 44.6% 49,442 Other 0.8% 856

Louisa Kerry 46.7% 2,297 Bush 52.3% 2,572 Other 1.0% 47

Lucas Kerry 43.5% 1,987 Bush 55.6% 2,543 Other 0.9% 41

Lyon Kerry 21.4% 1,303 Bush 77.9% 4,751 Other 0.8% 47

Madison Kerry 42.2% 3,380 Bush 56.7% 4,538 Other 1.1% 86

Mahaska Kerry 35.3% 3,790 Bush 63.9% 6,858 Other 0.7% 80

Marion Kerry 39.4% 6,574 Bush 59.8% 9,990 Other 0.8% 132

Marshall Kerry 49.3% 9,443 Bush 49.9% 9,557 Other 0.9% 164

Mills Kerry 33.3% 2,308 Bush 65.6% 4,556 Other 1.1% 76

Mitchell Kerry 50.8% 2,785 Bush 48.3% 2,646 Other 0.9% 49

Monona Kerry 47.8% 2,397 Bush 51.3% 2,575 Other 0.9% 46

Monroe Kerry 46.8% 1,855 Bush 52.2% 2,067 Other 1.0% 41

Montgomery Kerry 34.2% 1,899 Bush 64.8% 3,601 Other 1.0% 56

Muscatine Kerry 51.0% 9,542 Bush 48.2% 9,020 Other 0.8% 155

O'Brien Kerry 30.1% 2,330 Bush 68.9% 5,328 Other 0.9% 73

Osceola Kerry 28.6% 934 Bush 70.3% 2,295 Other 1.1% 37

Page Kerry 29.4% 2,211 Bush 69.8% 5,243 Other 0.8% 59

Palo Alto Kerry 47.8% 2,482 Bush 51.5% 2,674 Other 0.7% 35

Plymouth Kerry 35.0% 4,278 Bush 63.9% 7,810 Other 1.1% 134

Pocahontas Kerry 42.2% 1,822 Bush 56.6% 2,441 Other 1.2% 50

Polk Kerry 51.9% 105,218 Bush 47.3% 95,828 Other 0.8% 1,572

Pottawattamie Kerry 40.4% 16,906 Bush 58.7% 24,558 Other 0.9% 356

Poweshiek Kerry 50.0% 5,043 Bush 49.2% 4,965 Other 0.8% 83

Ringgold Kerry 46.3% 1,286 Bush 52.8% 1,466 Other 0.9% 26

Sac Kerry 41.2% 2,215 Bush 58.2% 3,128 Other 0.6% 31

Scott Kerry 50.9% 42,122 Bush 48.3% 39,958 Other 0.8% 642

Shelby Kerry 35.3% 2,355 Bush 63.8% 4,256 Other 0.9% 59

Sioux Kerry 13.6% 2,259 Bush 85.9% 14,229 Other 0.5% 82

Story Kerry 52.2% 23,296 Bush 46.6% 20,819 Other 1.2% 537

Tama Kerry 49.9% 4,487 Bush 49.5% 4,456 Other 0.6% 58

Taylor Kerry 39.2% 1,252 Bush 59.8% 1,908 Other 0.9% 30

Union Kerry 46.0% 2,747 Bush 52.9% 3,165 Other 1.1% 66

Van Buren Kerry 40.9% 1,568 Bush 57.6% 2,211 Other 1.5% 57

Wapello Kerry 54.6% 9,125 Bush 44.3% 7,403 Other 1.1% 179

Warren Kerry 46.5% 10,730 Bush 52.7% 12,160 Other 0.7% 163

Washington Kerry 43.0% 4,595 Bush 55.9% 5,977 Other 1.1% 116

Wayne Kerry 44.0% 1,379 Bush 55.3% 1,733 Other 0.7% 21

Webster Kerry 51.3% 9,561 Bush 48.1% 8,959 Other 0.6% 111

Winnebago Kerry 45.5% 2,707 Bush 53.3% 3,175 Other 1.2% 70

Winneshiek Kerry 49.6% 5,354 Bush 49.4% 5,324 Other 1.0% 106

Woodbury Kerry 48.5% 21,455 Bush 50.8% 22,451 Other 0.7% 289

Worth Kerry 55.4% 2,286 Bush 43.5% 1,795 Other 1.0% 42

Wright Kerry 44.4% 2,930 Bush 55.0% 3,631 Other 0.6% 42