2024 results by precinct
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 25,669 | 72,755 | 101,030 | |
| 2020 | R | 25,881 | 61,759 | 90,410 | |
| 2016 | R | 16,883 | 47,222 | 72,765 | |
| 2012 | R | 19,866 | 44,369 | 66,090 | |
| 2008 | R | 20,147 | 42,752 | 64,246 | |
| 2004 | R | 13,415 | 41,599 | 55,698 | |
| 2000 | R | 10,588 | 30,560 | 43,000 | |
| 1996 | R | 11,800 | 23,988 | 40,328 | |
| 1992 | R | 9,095 | 19,220 | 37,849 | |
| 1988 | R | 10,207 | 21,426 | 32,396 | |
| 1984 | R | 7,527 | 24,613 | 32,587 | |
| 1980 | R | 9,172 | 24,375 | 36,016 | |
| 1976 | R | 9,460 | 17,263 | 27,441 | |
| 1972 | R | 5,630 | 18,383 | 26,857 | |
| 1968 | R | 5,717 | 14,995 | 23,898 | |
| 1964 | R | 10,601 | 13,466 | 24,067 | |
| 1960 | R | 9,681 | 15,865 | 25,546 | |
| 1956 | R | 7,540 | 15,483 | 23,023 | |
| 1952 | R | 6,810 | 17,065 | 23,923 | |
| 1948 | R | 7,903 | 9,700 | 18,363 | |
| 1944 | R | 7,306 | 9,215 | 16,762 | |
| 1940 | R | 8,639 | 8,776 | 17,478 | |
| 1936 | D | 8,290 | 4,910 | 14,547 | |
| 1932 | D | 6,940 | 5,065 | 13,054 | |
| 1928 | R | 2,187 | 7,293 | 9,619 | |
| 1924 | R | 965 | 3,820 | 9,948 | |
| 1920 | R | 3,375 | 5,633 | 9,008 | |
| 1916 | D | 4,478 | 3,570 | 8,960 | |
| 1912 | D | 2,432 | 1,842 | 8,279 | |
| 1908 | R | 2,783 | 4,023 | 7,411 | |
| 1904 | R | 1,025 | 3,172 | 4,766 | |
| 1900 | R | 1,314 | 1,350 | 2,861 | |
| 1896 | D | 1,178 | 303 | 1,503 | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
100.0%
Sample size too small to break out by ancestry reliably.
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
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: 34.9 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
$76,488
Canyon County ranks in the top 25% of US counties.
Canyon County$76,488
Idaho$77,800
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
10.5%
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 57.0% of residents not counted as adherents by any reporting body.
Canyon County's Treasure Valley growth has made it one of Idaho's most populous counties, yet rapid in-migration has barely dented a presidential margin that exceeded 46 points in 2024, signaling strong partisan self-sorting among arrivals.
The Republican margin in Canyon County reached its widest at fifty-three points in 1928. The margin in 2024 was forty-seven points, in line with the county's deep historical pattern.
Canyon County's loyalty is rooted in its place. Median household income of $76,488, a 73% non-Hispanic-white share, and a population of 250,790 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 Dawson County and Malheur County.
Most similar counties
More republican loyalist counties