| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 104 | 910 | 1,036 | |
| 2020 | R | 105 | 895 | 1,017 | |
| 2016 | R | 74 | 723 | 854 | |
| 2012 | R | 107 | 663 | 808 | |
| 2008 | R | 144 | 564 | 728 | |
| 2004 | R | 144 | 571 | 738 | |
| 2000 | R | 150 | 632 | 837 | |
| 1996 | R | 158 | 412 | 688 | |
| 1992 | R | 129 | 330 | 690 | |
| 1988 | R | 151 | 413 | 582 | |
| 1984 | R | 124 | 439 | 578 | |
| 1980 | R | 103 | 430 | 564 | |
| 1976 | R | 163 | 272 | 467 | |
| 1972 | R | 139 | 371 | 510 | |
| 1968 | R | 149 | 277 | 490 | |
| 1964 | D | 285 | 243 | 528 | |
| 1960 | R | 223 | 239 | 462 | |
| 1956 | R | 183 | 330 | 513 | |
| 1952 | R | 157 | 379 | 536 | |
| 1948 | R | 278 | 312 | 603 | |
| 1944 | R | 217 | 317 | 534 | |
| 1940 | D | 353 | 284 | 637 | |
| 1936 | D | 396 | 180 | 576 | |
| 1932 | D | 385 | 136 | 521 | |
| 1928 | D | 261 | 251 | 512 | |
| 1924 | R | 94 | 209 | 418 | |
| 1920 | R | 157 | 313 | 491 | |
| 1916 | D | 263 | 239 | 520 | |
| 1912 | D | 209 | 70 | 424 | |
| 1908 | R | 218 | 224 | 481 | |
| 1904 | R | 107 | 235 | 376 | |
| 1900 | D | 389 | 121 | 510 | |
| 1896 | D | 553 | 22 | 575 | |
| 1892 | R | 10 | 48 | 773 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Eureka County's roughly 1,600 residents make it one of Nevada's least populous counties, yet it consistently posts some of the widest presidential margins in the state, with cattle ranching and mining shaping a deeply rural electorate.
The Republican margin in Eureka County reached its widest at seventy-eight points in 2024. The margin in 2024 was seventy-eight points, in line with the county's deep historical pattern.
Eureka County's loyalty is rooted in its place. Median household income of $70,473, a 84% non-Hispanic-white share, and a population of 1,585 together describe a community whose political habits are deeply settled. The county's voting pattern over the last decade is most similar to that of Furnas County and Adair County.
