| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 25,440 | 21,632 | 48,663 | |
| 2020 | D | 24,721 | 23,062 | 49,264 | |
| 2016 | R | 17,677 | 18,794 | 40,533 | |
| 2012 | D | 18,580 | 18,437 | 38,385 | |
| 2008 | D | 19,470 | 18,199 | 38,519 | |
| 2004 | R | 17,049 | 18,871 | 36,766 | |
| 2000 | R | 13,779 | 16,251 | 32,232 | |
| 1996 | D | 12,585 | 12,432 | 29,516 | |
| 1992 | D | 10,820 | 9,765 | 28,673 | |
| 1988 | R | 11,123 | 11,200 | 22,794 | |
| 1984 | R | 9,701 | 13,605 | 23,735 | |
| 1980 | R | 8,029 | 11,515 | 22,296 | |
| 1976 | R | 8,268 | 9,132 | 18,386 | |
| 1972 | R | 5,620 | 9,372 | 16,089 | |
| 1968 | D | 7,030 | 5,921 | 14,234 | |
| 1964 | D | 9,265 | 4,175 | 13,455 | |
| 1960 | D | 6,801 | 6,227 | 13,080 | |
| 1956 | R | 5,632 | 6,852 | 12,500 | |
| 1952 | R | 5,390 | 6,442 | 11,938 | |
| 1948 | D | 5,412 | 4,178 | 10,097 | |
| 1944 | D | 5,441 | 3,551 | 9,051 | |
| 1940 | D | 5,966 | 3,555 | 9,631 | |
| 1936 | D | 5,586 | 2,404 | 8,418 | |
| 1932 | D | 3,954 | 1,870 | 7,537 | |
| 1928 | R | 1,705 | 3,319 | 5,065 | |
| 1924 | R | 283 | 2,129 | 4,089 | |
| 1920 | R | 489 | 1,775 | 3,302 | |
| 1916 | R | 1,339 | 1,475 | 3,261 | |
| 1912 | R | 464 | 727 | 2,536 | |
| 1908 | R | 428 | 938 | 1,574 | |
| 1904 | R | 273 | 903 | 1,325 | |
| 1900 | R | 407 | 723 | 1,196 | |
| 1896 | D | 717 | 559 | 1,287 | |
| 1892 | R | 448 | 518 | 1,356 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Clallam sits on Washington's Olympic Peninsula, where a mix of tribal communities, retirees, and legacy timber workers has produced competitive but increasingly center-left presidential results over the past decade.
The Democratic margin in Clallam County has rarely exceeded thirty-eight points in modern history; the Republican margin has rarely exceeded forty-eight points. 2024 delivered the county to the Democratic candidate by eight points.
Clallam County's demographics resemble the country more than they resemble most counties. A 82% non-Hispanic-white share, a 11% poverty rate, and a median household income of $70,370 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Whitman County and Chaffee County.
