| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 860 | 4,458 | 5,370 | |
| 2020 | R | 1,062 | 4,359 | 5,517 | |
| 2016 | R | 1,098 | 3,977 | 5,284 | |
| 2012 | R | 964 | 3,968 | 4,985 | |
| 2008 | R | 1,123 | 4,282 | 5,437 | |
| 2004 | R | 1,009 | 4,601 | 5,628 | |
| 2000 | R | 1,040 | 4,201 | 5,290 | |
| 1996 | R | 1,358 | 3,353 | 5,083 | |
| 1992 | R | 1,361 | 3,147 | 5,498 | |
| 1988 | R | 1,537 | 3,710 | 5,281 | |
| 1984 | R | 1,129 | 4,649 | 5,796 | |
| 1980 | R | 1,743 | 3,736 | 5,583 | |
| 1976 | D | 2,767 | 2,759 | 5,575 | |
| 1972 | R | 863 | 3,620 | 4,538 | |
| 1968 | R | 1,359 | 2,378 | 4,996 | |
| 1964 | D | 2,393 | 1,762 | 4,159 | |
| 1960 | R | 1,547 | 2,463 | 4,025 | |
| 1956 | D | 2,219 | 1,820 | 4,049 | |
| 1952 | D | 2,114 | 1,909 | 4,035 | |
| 1948 | D | 1,748 | 323 | 2,101 | |
| 1944 | D | 999 | 313 | 1,394 | |
| 1940 | D | 959 | 224 | 1,189 | |
| 1936 | D | 583 | 47 | 631 | |
| 1932 | D | 549 | 56 | 607 | |
| 1928 | D | 124 | 87 | 211 | |
| 1924 | D | 82 | 9 | 92 | |
| 1920 | D | 101 | 13 | 115 | |
| 1916 | D | 103 | 6 | 109 | |
| 1912 | D | 57 | 5 | 73 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Moore County's beef-packing and petrochemical economy anchors a heavily Hispanic yet reliably Republican electorate that delivered a 67-point margin in 2024, illustrating how the Rio Grande Valley realignment extends into the Panhandle's working-class towns.
The unraveling was not abrupt. The Democratic margin in Moore County peaked at eighty-nine points in 1916; it narrowed steadily over the late twentieth century. The 1980 election delivered the county to the Republican party for the first time in many years, by a margin of thirty-six points. By 2024, the margin had widened further.
The economic and demographic context is severe. Moore County's median household income of $61,762 is among the lowest of any county in the United States; 18% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Cassia County and Sherman County.