| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 302 | 1,056 | 1,393 | |
| 2020 | R | 317 | 1,052 | 1,405 | |
| 2016 | R | 340 | 974 | 1,407 | |
| 2012 | R | 556 | 804 | 1,400 | |
| 2008 | R | 655 | 794 | 1,495 | |
| 2004 | R | 620 | 1,009 | 1,649 | |
| 2000 | D | 847 | 513 | 1,413 | |
| 1996 | R | 664 | 709 | 1,587 | |
| 1992 | D | 680 | 594 | 1,712 | |
| 1988 | D | 987 | 856 | 1,854 | |
| 1984 | R | 840 | 1,029 | 1,883 | |
| 1980 | R | 709 | 1,251 | 2,123 | |
| 1976 | D | 1,269 | 831 | 2,109 | |
| 1972 | D | 1,257 | 1,075 | 2,339 | |
| 1968 | D | 1,060 | 1,043 | 2,233 | |
| 1964 | D | 1,555 | 871 | 2,426 | |
| 1960 | D | 1,270 | 1,267 | 2,537 | |
| 1956 | D | 1,374 | 1,055 | 2,429 | |
| 1952 | R | 997 | 1,458 | 2,455 | |
| 1948 | D | 1,275 | 1,056 | 2,347 | |
| 1944 | R | 1,011 | 1,163 | 2,174 | |
| 1940 | R | 1,385 | 1,408 | 2,793 | |
| 1936 | D | 1,801 | 1,082 | 2,963 | |
| 1932 | D | 2,304 | 860 | 3,219 | |
| 1928 | R | 1,426 | 1,552 | 3,001 | |
| 1924 | R | 665 | 967 | 2,663 | |
| 1920 | R | 445 | 1,004 | 2,041 | |
| 1916 | R | 735 | 793 | 1,596 | |
| 1912 | D | 801 | 0 | 1,564 | |
| 1908 | D | 694 | 686 | 1,432 | |
| 1904 | R | 407 | 652 | 1,109 | |
| 1900 | R | 486 | 503 | 1,011 | |
| 1896 | D | 479 | 387 | 878 | |
| 1892 | R | 207 | 461 | 982 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Aurora's roughly 3,000 residents are spread across a largely agricultural landscape where the 2024 presidential margin exceeded 54 points, placing it among the state's most uniformly partisan counties.
The Republican margin in Aurora County reached its widest at fifty-four points in 2024. The margin in 2024 was fifty-four points, in line with the county's deep historical pattern.
Aurora County's loyalty is rooted in its place. Median household income of $72,885, a 87% non-Hispanic-white share, and a population of 2,642 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 Spink County and Clark County.
