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 | R | 9,064 | 27,302 | 37,371 | |
| 2020 | R | 9,391 | 25,897 | 36,501 | |
| 2016 | R | 6,233 | 19,828 | 29,873 | |
| 2012 | R | 7,541 | 19,773 | 28,142 | |
| 2008 | R | 8,621 | 19,032 | 28,344 | |
| 2004 | R | 6,458 | 19,672 | 26,435 | |
| 2000 | R | 5,777 | 15,794 | 22,530 | |
| 1996 | R | 6,826 | 12,393 | 22,896 | |
| 1992 | R | 6,593 | 10,335 | 23,503 | |
| 1988 | R | 7,078 | 13,243 | 20,734 | |
| 1984 | R | 4,567 | 16,974 | 21,771 | |
| 1980 | R | 4,835 | 17,425 | 23,708 | |
| 1976 | R | 6,085 | 12,659 | 19,233 | |
| 1972 | R | 3,344 | 13,075 | 17,673 | |
| 1968 | R | 4,001 | 11,564 | 18,373 | |
| 1964 | R | 7,638 | 11,518 | 19,156 | |
| 1960 | R | 7,413 | 12,171 | 19,584 | |
| 1956 | R | 5,666 | 12,097 | 17,763 | |
| 1952 | R | 4,548 | 14,471 | 19,023 | |
| 1948 | R | 6,019 | 7,833 | 14,061 | |
| 1944 | R | 6,128 | 7,946 | 14,116 | |
| 1940 | R | 7,286 | 9,031 | 16,351 | |
| 1936 | D | 7,476 | 4,966 | 12,828 | |
| 1932 | D | 6,395 | 4,928 | 11,719 | |
| 1928 | R | 2,471 | 6,791 | 9,338 | |
| 1924 | R | 1,641 | 4,630 | 9,071 | |
| 1920 | R | 2,882 | 5,894 | 8,776 | |
| 1916 | D | 3,974 | 3,083 | 7,701 | |
| 1912 | D | 1,741 | 1,074 | 5,348 | |
| 1908 | R | 1,053 | 1,757 | 3,162 | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 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%.
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: 36.1 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
$67,409
Twin Falls County ranks near the middle of US counties.
Twin Falls County$67,409
Idaho$77,800
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
11.5%
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 52.4% of residents not counted as adherents by any reporting body.
Twin Falls County sits in the Snake River Plain and has voted Republican by margins exceeding 40 points in recent cycles, with its mid-sized urban core not meaningfully softening that partisan lean.
The Republican margin in Twin Falls County reached its widest at fifty-seven points in 1984. The margin in 2024 was forty-nine points, in line with the county's deep historical pattern.
Twin Falls County's loyalty is rooted in its place. Median household income of $67,409, a 79% non-Hispanic-white share, and a population of 93,734 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 Jerome County and Klamath County.
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