| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 12,148 | 18,780 | 31,035 | |
| 2020 | R | 12,477 | 18,182 | 31,401 | |
| 2016 | R | 10,697 | 17,290 | 30,031 | |
| 2012 | R | 11,705 | 14,448 | 26,770 | |
| 2008 | R | 13,655 | 16,030 | 30,149 | |
| 2004 | R | 11,504 | 17,729 | 29,948 | |
| 2000 | R | 10,476 | 15,244 | 27,223 | |
| 1996 | R | 10,868 | 10,981 | 25,138 | |
| 1992 | R | 8,648 | 12,122 | 26,814 | |
| 1988 | R | 9,506 | 14,004 | 23,697 | |
| 1984 | R | 7,399 | 16,389 | 23,892 | |
| 1980 | R | 9,030 | 11,193 | 22,454 | |
| 1976 | R | 9,629 | 14,044 | 23,819 | |
| 1972 | R | 7,031 | 15,886 | 22,980 | |
| 1968 | R | 6,989 | 11,659 | 19,513 | |
| 1964 | D | 13,481 | 7,120 | 20,619 | |
| 1960 | R | 7,765 | 13,681 | 21,454 | |
| 1956 | R | 4,989 | 15,523 | 20,512 | |
| 1952 | R | 5,901 | 14,760 | 20,690 | |
| 1948 | R | 6,409 | 11,310 | 18,062 | |
| 1944 | R | 6,351 | 11,383 | 17,775 | |
| 1940 | R | 6,397 | 12,629 | 19,084 | |
| 1936 | R | 6,088 | 12,353 | 18,953 | |
| 1932 | R | 6,529 | 11,114 | 17,888 | |
| 1928 | R | 5,545 | 11,632 | 18,160 | |
| 1924 | R | 3,676 | 10,472 | 15,055 | |
| 1920 | R | 3,571 | 9,488 | 13,783 | |
| 1916 | R | 3,608 | 5,211 | 9,038 | |
| 1912 | R | 3,203 | 3,726 | 8,973 | |
| 1908 | R | 3,567 | 5,700 | 9,542 | |
| 1904 | R | 3,252 | 5,884 | 9,574 | |
| 1900 | R | 3,877 | 5,608 | 9,887 | |
| 1896 | R | 4,101 | 5,461 | 9,896 | |
| 1892 | R | 3,672 | 4,886 | 9,373 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Livingston County's mix of small agricultural towns and mid-sized villages like Geneseo has produced consistently wide Republican presidential margins, reaching R+21.4 in 2024 — a pattern common to the broader rural upstate New York landscape.
The Republican margin in Livingston County reached its widest at fifty-one points in 1956. The margin in 2024 was twenty-one points, in line with the county's deep historical pattern.
Livingston County's loyalty is rooted in its place. Median household income of $74,001, a 89% non-Hispanic-white share, and a population of 61,498 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 Wayne County and Steuben County.