The number of elections in Iowa varies from year to year. Presidential elections are held every four years.
United States presidential election results for Iowa[1]
Year
Republican / Whig
Democratic
Third party
No.
%
No.
%
No.
%
2020
897,672
53.09%
759,061
44.89%
34,138
2.02%
2016
800,983
51.15%
653,669
41.74%
111,379
7.11%
2012
730,617
46.18%
822,544
51.99%
29,019
1.83%
2008
682,379
44.39%
828,940
53.93%
25,804
1.68%
2004
751,957
49.90%
741,898
49.23%
13,053
0.87%
2000
634,373
48.22%
638,517
48.54%
42,673
3.24%
1996
492,644
39.92%
620,258
50.26%
121,173
9.82%
1992
504,891
37.27%
586,353
43.29%
263,363
19.44%
1988
545,355
44.50%
670,557
54.71%
9,702
0.79%
1984
703,088
53.27%
605,620
45.89%
11,097
0.84%
1980
676,026
51.31%
508,672
38.60%
132,963
10.09%
1976
632,863
49.47%
619,931
48.46%
26,512
2.07%
1972
706,207
57.61%
496,206
40.48%
23,531
1.92%
1968
619,106
53.01%
476,699
40.82%
72,126
6.18%
1964
449,148
37.92%
733,030
61.88%
2,361
0.20%
1960
722,381
56.71%
550,565
43.22%
864
0.07%
1956
729,187
59.06%
501,858
40.65%
3,519
0.29%
1952
808,906
63.75%
451,513
35.59%
8,354
0.66%
1948
494,018
47.58%
522,380
50.31%
21,874
2.11%
1944
547,267
51.99%
499,876
47.49%
5,456
0.52%
1940
632,370
52.03%
578,800
47.62%
4,260
0.35%
1936
487,977
42.70%
621,756
54.41%
33,000
2.89%
1932
414,433
39.98%
598,019
57.69%
24,235
2.34%
1928
623,570
61.77%
379,311
37.57%
6,608
0.65%
1924
537,458
55.02%
160,382
16.42%
278,930
28.56%
1920
634,674
70.91%
227,921
25.46%
32,487
3.63%
1916
280,439
54.25%
221,699
42.89%
14,806
2.86%
1912
119,805
24.33%
185,325
37.64%
187,226
38.03%
1908
275,209
55.62%
200,771
40.58%
18,789
3.80%
1904
308,158
63.39%
149,276
30.71%
28,659
5.90%
1900
307,808
58.04%
209,265
39.46%
13,282
2.50%
1896
289,293
54.42%
233,741
43.97%
8,513
1.60%
1892
219,795
49.60%
196,367
44.31%
26,997
6.09%
1888
211,603
52.36%
179,877
44.51%
12,655
3.13%
1884
197,089
52.25%
177,316
47.01%
2,796
0.74%
1880
183,904
56.99%
105,845
32.80%
32,919
10.20%
1876
171,326
58.50%
112,121
38.28%
9,431
3.22%
1872
131,566
60.81%
71,189
32.90%
13,610
6.29%
1868
120,399
61.92%
74,040
38.08%
0
0.00%
1864
88,500
64.12%
49,525
35.88%
0
0.00%
1860
70,302
54.61%
55,639
43.22%
2,798
2.17%
1856
45,073
48.83%
37,568
40.70%
9,669
10.47%
1852
15,856
44.84%
17,763
50.23%
1,745
4.93%
1848
9,930
44.59%
11,238
50.46%
1,103
4.95%
Since 1972, Iowa has been the first state to vote in presidential primaries, with their caucuses. As with presidential elections, gubernatorial elections are held every four years - but are staggered such that they are held on general elections independently of the presidential election. Members of the Iowa Senate are elected every four years, with half of the Senate elected at each general election; all members of the Iowa House of Representatives are elected every two years. Additionally, elections for various government officials, judicial retention elections, and elections on referendums occur as part of various elections in Iowa.
In a 2020 study, Iowa was ranked as the 24th easiest state for citizens to vote in.[2]
^Leip, David. "Presidential General Election Results Comparison – Iowa". US Election Atlas. Retrieved January 1, 2023.
^J. Pomante II, Michael; Li, Quan (15 Dec 2020). "Cost of Voting in the American States: 2020". Election Law Journal: Rules, Politics, and Policy. 19 (4): 503–509. doi:10.1089/elj.2020.0666. S2CID 225139517.
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