| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,276 | 12,501 | 15,122 | |
| 2020 | R | 2,169 | 11,739 | 14,334 | |
| 2016 | R | 1,735 | 10,069 | 12,807 | |
| 2012 | R | 2,322 | 7,184 | 9,808 | |
| 2008 | R | 2,921 | 6,291 | 9,373 | |
| 2004 | R | 2,512 | 6,278 | 8,929 | |
| 2000 | R | 2,330 | 5,187 | 7,807 | |
| 1996 | R | 3,018 | 3,590 | 7,840 | |
| 1992 | R | 3,008 | 3,664 | 9,917 | |
| 1988 | R | 4,004 | 5,653 | 9,768 | |
| 1984 | R | 3,177 | 8,166 | 11,523 | |
| 1980 | R | 2,545 | 6,530 | 9,904 | |
| 1976 | R | 4,189 | 4,230 | 8,692 | |
| 1972 | R | 2,989 | 4,800 | 8,014 | |
| 1968 | R | 3,263 | 3,980 | 7,726 | |
| 1964 | D | 5,352 | 3,076 | 8,439 | |
| 1960 | D | 4,683 | 4,492 | 9,177 | |
| 1956 | R | 4,157 | 4,188 | 8,364 | |
| 1952 | R | 2,999 | 4,307 | 7,367 | |
| 1948 | D | 2,571 | 2,133 | 5,495 | |
| 1944 | D | 3,748 | 2,217 | 6,063 | |
| 1940 | D | 4,579 | 2,470 | 7,211 | |
| 1936 | D | 4,903 | 1,021 | 7,473 | |
| 1932 | D | 4,823 | 1,509 | 6,884 | |
| 1928 | R | 2,503 | 3,591 | 6,272 | |
| 1924 | R | 308 | 1,865 | 5,073 | |
| 1920 | R | 1,330 | 3,768 | 5,769 | |
| 1916 | D | 1,769 | 903 | 3,193 | |
| 1912 | D | 696 | 549 | 2,280 | |
| 1908 | R | 1,034 | 1,979 | 3,276 | |
| 1904 | R | 316 | 825 | 1,163 | |
| 1900 | R | 95 | 249 | 346 | |
| 1896 | R | 83 | 103 | 188 | |
| 1892 | R | 0 | 45 | 101 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Williams County anchors North Dakota's oil-patch economy along the Bakken formation, and its 2024 presidential margin of R+67.6 reflects a voting pattern consistent with energy-dependent rural counties across the northern plains.
The Republican margin in Williams County reached its widest at sixty-eight points in 2024. The margin in 2024 was sixty-eight points, in line with the county's deep historical pattern.
Williams County's loyalty is rooted in its place. Median household income of $85,595, a 80% non-Hispanic-white share, and a population of 39,555 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 Burke County and Martin County.
