| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 4,743 | 4,822 | 9,884 | |
| 2020 | R | 4,709 | 4,883 | 9,869 | |
| 2016 | R | 3,358 | 4,494 | 8,588 | |
| 2012 | R | 3,684 | 4,253 | 8,187 | |
| 2008 | R | 4,037 | 4,128 | 8,308 | |
| 2004 | R | 3,243 | 4,260 | 7,609 | |
| 2000 | R | 2,308 | 3,570 | 6,353 | |
| 1996 | R | 2,012 | 2,264 | 4,890 | |
| 1992 | R | 1,678 | 1,763 | 4,918 | |
| 1988 | R | 1,451 | 2,306 | 3,838 | |
| 1984 | R | 1,017 | 2,865 | 3,940 | |
| 1980 | R | 820 | 2,133 | 3,481 | |
| 1976 | R | 910 | 1,703 | 2,757 | |
| 1972 | R | 685 | 1,721 | 2,461 | |
| 1968 | R | 433 | 1,167 | 1,732 | |
| 1964 | D | 902 | 814 | 1,724 | |
| 1960 | R | 657 | 1,104 | 1,763 | |
| 1956 | R | 496 | 1,239 | 1,737 | |
| 1952 | R | 554 | 1,333 | 1,895 | |
| 1948 | R | 763 | 777 | 1,562 | |
| 1944 | R | 554 | 968 | 1,524 | |
| 1940 | R | 863 | 1,074 | 1,946 | |
| 1936 | D | 846 | 714 | 1,568 | |
| 1932 | D | 771 | 598 | 1,395 | |
| 1928 | R | 451 | 770 | 1,239 | |
| 1924 | R | 308 | 681 | 1,254 | |
| 1920 | R | 553 | 649 | 1,236 | |
| 1916 | D | 624 | 378 | 1,017 | |
| 1912 | D | 507 | 248 | 962 | |
| 1908 | R | 487 | 529 | 1,031 | |
| 1904 | R | 266 | 475 | 752 | |
| 1900 | D | 182 | 171 | 355 | |
| 1896 | D | 251 | 12 | 265 | |
| 1892 | R | 0 | 104 | 238 | |
| 1888 | R | 83 | 162 | 250 | |
| 1884 | R | 174 | 249 | 428 | |
| 1880 | R | 87 | 121 | 212 | |
| 1876 | — | — | — | — |
Grand County's mix of resort workers in Winter Park and agricultural communities along the Fraser River compresses presidential margins to near-zero, making it one of Colorado's most closely contested rural counties.
The county's recent history is a story of close margins. The Democratic margin reached ninety points in 1896; the Republican margin reached forty-seven points in 1984. Most other elections have been decided by single-digit points.
Grand County's demographics — a population of 15,895, a 79% non-Hispanic-white share, a median household income of $88,612 — situate the county close to national averages on several dimensions. The county's voting pattern over the last decade is most similar to that of Grand Traverse County and Garfield County.
