2024 results by precinct
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Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 832,606 | 252,193 | 1,130,502 | |
| 2020 | D | 907,310 | 269,167 | 1,210,507 | |
| 2016 | D | 718,322 | 216,339 | 1,028,450 | |
| 2012 | D | 668,004 | 275,700 | 972,021 | |
| 2008 | D | 648,230 | 259,716 | 922,032 | |
| 2004 | D | 580,378 | 301,043 | 894,728 | |
| 2000 | D | 476,700 | 273,171 | 794,196 | |
| 1996 | D | 417,846 | 232,811 | 741,104 | |
| 1992 | D | 391,050 | 212,986 | 778,593 | |
| 1988 | D | 349,663 | 290,574 | 648,957 | |
| 1984 | R | 298,620 | 332,987 | 639,261 | |
| 1980 | R | 235,046 | 272,567 | 600,157 | |
| 1976 | R | 248,743 | 279,382 | 550,119 | |
| 1972 | R | 212,509 | 298,707 | 529,694 | |
| 1968 | D | 223,469 | 218,457 | 474,935 | |
| 1964 | D | 268,216 | 177,598 | 450,640 | |
| 1960 | R | 208,756 | 224,150 | 440,810 | |
| 1956 | R | 167,443 | 213,504 | 386,223 | |
| 1952 | R | 165,583 | 200,507 | 371,771 | |
| 1948 | D | 143,295 | 131,039 | 291,635 | |
| 1944 | D | 165,308 | 118,719 | 286,604 | |
| 1940 | D | 143,134 | 95,504 | 241,803 | |
| 1936 | D | 138,597 | 66,544 | 210,045 | |
| 1932 | D | 108,738 | 63,346 | 184,031 | |
| 1928 | R | 46,604 | 96,263 | 146,678 | |
| 1924 | R | 7,404 | 60,438 | 112,940 | |
| 1920 | R | 17,369 | 58,584 | 107,124 | |
| 1916 | D | 52,362 | 38,959 | 95,708 | |
| 1912 | D | 20,088 | 15,579 | 71,309 | |
| 1908 | R | 14,644 | 22,297 | 39,993 | |
| 1904 | R | 5,266 | 20,434 | 29,029 | |
| 1900 | R | 7,804 | 10,218 | 18,832 | |
| 1896 | D | 7,733 | 6,413 | 14,305 | |
| 1892 | R | 4,974 | 6,520 | 14,762 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
100.0%
Polish
0.6%
Irish
0.5%
African American
5.3%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 37.4 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$124,746
King County ranks in the top 0.5% of US counties.
King County$124,746
Washington$98,141
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
8.6%
Children face moderate poverty.
Children under 1818.0%
Working age (18–64)100.0%
Seniors (65+)18.0%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
0.0%
speak English only
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 61.0% of residents not counted as adherents by any reporting body.
With over 1.7 million residents anchored by a dense, highly educated urban core, King County consistently posts presidential margins exceeding 50 points, making it one of the most lopsided large counties in the country.
The Democratic margin in King County has been steady. It reached its modern peak at fifty-three points in 2020; the 2024 margin was fifty-one points, still in line with the county's long pattern.
King County's political identity is inseparable from its demographic profile: a 55% non-Hispanic-white share, a median household income of $124,746, and the full diversity of a major metropolitan center. The county's voting pattern resembles other major urban centers most closely — Richmond city and Alexandria city.
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