| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 796 | 2,727 | 3,582 | |
| 2020 | R | 933 | 2,826 | 3,823 | |
| 2016 | R | 963 | 2,702 | 3,918 | |
| 2012 | R | 1,523 | 2,396 | 4,032 | |
| 2008 | R | 1,800 | 2,138 | 4,011 | |
| 2004 | R | 1,822 | 2,441 | 4,313 | |
| 2000 | R | 1,736 | 2,242 | 4,141 | |
| 1996 | D | 1,981 | 1,707 | 4,215 | |
| 1992 | D | 1,919 | 1,743 | 4,669 | |
| 1988 | D | 2,722 | 1,871 | 4,652 | |
| 1984 | R | 2,481 | 2,627 | 5,188 | |
| 1980 | R | 1,959 | 3,194 | 5,686 | |
| 1976 | D | 3,055 | 2,700 | 5,889 | |
| 1972 | R | 2,241 | 3,138 | 5,487 | |
| 1968 | R | 2,364 | 2,940 | 5,594 | |
| 1964 | D | 3,988 | 2,079 | 6,072 | |
| 1960 | R | 3,408 | 3,445 | 6,859 | |
| 1956 | R | 3,201 | 3,606 | 6,818 | |
| 1952 | R | 2,517 | 4,472 | 7,245 | |
| 1948 | D | 3,500 | 2,397 | 6,051 | |
| 1944 | D | 3,577 | 2,600 | 6,199 | |
| 1940 | D | 4,118 | 2,985 | 7,121 | |
| 1936 | D | 4,357 | 2,277 | 6,819 | |
| 1932 | D | 4,245 | 1,800 | 6,321 | |
| 1928 | R | 2,824 | 3,322 | 6,180 | |
| 1924 | R | 819 | 2,537 | 6,398 | |
| 1920 | R | 1,639 | 4,046 | 5,774 | |
| 1916 | R | 1,658 | 1,808 | 3,525 | |
| 1912 | D | 1,176 | 760 | 3,311 | |
| 1908 | R | 1,315 | 1,857 | 3,234 | |
| 1904 | R | 976 | 2,175 | 3,291 | |
| 1900 | R | 1,287 | 2,176 | 3,519 | |
| 1896 | R | 1,377 | 1,866 | 3,284 | |
| 1892 | R | 939 | 1,304 | 2,513 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Pocahontas County's population has contracted steadily as its agricultural economy consolidated, and its presidential margins have widened sharply over the past decade, hitting R+53.9 in 2024 — among the largest in the state.
The Democratic margin in Pocahontas County peaked at thirty-nine points in 1932. By 2000 the county had flipped, voting Republican for the first time in many years. The 2024 margin was fifty-four points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Pocahontas County's median household income of $61,875 sits well below state and national norms, and 10% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country. The county's voting pattern over the last decade is most similar to that of Madison County and Wright County.