| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 666 | 737 | 1,582 | |
| 2020 | D | 1,056 | 756 | 1,942 | |
| 2016 | D | 1,097 | 521 | 2,062 | |
| 2012 | D | 1,309 | 609 | 2,000 | |
| 2008 | R | 952 | 1,328 | 2,367 | |
| 2004 | R | 919 | 1,289 | 2,288 | |
| 2000 | R | 818 | 1,081 | 2,122 | |
| 1996 | D | 1,031 | 784 | 2,078 | |
| 1992 | R | 828 | 869 | 2,176 | |
| 1988 | R | 663 | 946 | 1,674 | |
| 1984 | R | 744 | 1,146 | 1,946 | |
| 1980 | D | 728 | 588 | 1,481 | |
| 1976 | D | 712 | 476 | 1,225 | |
| 1972 | R | 549 | 743 | 1,315 | |
| 1968 | R | 467 | 501 | 1,014 | |
| 1964 | D | 727 | 219 | 946 | |
| 1960 | R | 355 | 391 | 746 | |
| 1956 | — | — | — | — | |
| 1952 | — | — | — | — | |
| 1948 | — | — | — | — | |
| 1944 | — | — | — | — | |
| 1940 | — | — | — | — | |
| 1936 | — | — | — | — | |
| 1932 | — | — | — | — | |
| 1928 | — | — | — | — | |
| 1924 | — | — | — | — | |
| 1920 | — | — | — | — | |
| 1916 | — | — | — | — | |
| 1912 | — | — | — | — | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Home to roughly 7,200 residents spread across roadless tundra villages, Northwest Arctic Borough is majority Iñupiaq and has trended toward closer federal contests in recent cycles, with 2024 marking a modest Republican margin of 4.2 points.
The county has voted both ways in living memory. The Democratic margin peaked at fifty-four points in 1964; the Republican margin peaked at twenty-one points in 1984. The 2024 margin of four points fits the pattern of swing.
Northwest Arctic Borough's demographics — a population of 7,441, a 10% non-Hispanic-white share, a median household income of $84,018 — describe a Western place. The county shares the Western pattern of independence with Dillingham Census Area and Nome Census Area.
