Twin Falls County, Idaho: Texan Right county. In 2024, voted R+49%. Republican peak: R+57 in 1984.
Key facts
- 2024 presidential margin
- R+49MIT Election Lab
- Political typology
- Texan RightAkashic typology
- Population
- 93,7342024 5-year
- Median household income
- $67,4092024 5-year
- White (non-Hispanic)
- 78.6%2024 5-year
- Black
- 0.9%2024 5-year
- Hispanic / Latino
- 18.0%2024 5-year
- Peak Democratic margin
- D+20 in 1936MIT Election Lab
- Peak Republican margin
- R+57 in 1984MIT Election Lab
- Most similar
- Jerome County, ID · similarity 1.00
2024 results by precinct
2024 precinct map of Twin Falls CountyPrecinct-level 2024 presidential results for Twin Falls County, with each precinct boundary colored by Democratic-vs-Republican margin.
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Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | No data |
| 1896 | No data |
| 1900 | No data |
| 1904 | No data |
| 1908 | −22.3% |
| 1912 | +12.5% |
| 1916 | +11.6% |
| 1920 | −34.3% |
| 1924 | −33.0% |
| 1928 | −46.3% |
| 1932 | +12.5% |
| 1936 | +19.6% |
| 1940 | −10.7% |
| 1944 | −12.9% |
| 1948 | −12.9% |
| 1952 | −52.2% |
| 1956 | −36.2% |
| 1960 | −24.3% |
| 1964 | −20.3% |
| 1968 | −41.2% |
| 1972 | −55.1% |
| 1976 | −34.2% |
| 1980 | −53.1% |
| 1984 | −57.0% |
| 1988 | −29.7% |
| 1992 | −15.9% |
| 1996 | −24.3% |
| 2000 | −44.5% |
| 2004 | −50.0% |
| 2008 | −36.7% |
| 2012 | −43.5% |
| 2016 | −45.5% |
| 2020 | −45.2% |
| 2024 | −48.8% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 9,064 | 27,302 | 37,371 | ||
| R | 9,391 | 25,897 | 36,501 | ||
| R | 6,233 | 19,828 | 29,873 | ||
| R | 7,541 | 19,773 | 28,142 | ||
| R | 8,621 | 19,032 | 28,344 | ||
| R | 6,458 | 19,672 | 26,435 | ||
| R | 5,777 | 15,794 | 22,530 | ||
| R | 6,826 | 12,393 | 22,896 | ||
| R | 6,593 | 10,335 | 23,503 | ||
| R | 7,078 | 13,243 | 20,734 | ||
| R | 4,567 | 16,974 | 21,771 | ||
| R | 4,835 | 17,425 | 23,708 | ||
| R | 6,085 | 12,659 | 19,233 | ||
| R | 3,344 | 13,075 | 17,673 | ||
| R | 4,001 | 11,564 | 18,373 | ||
| R | 7,638 | 11,518 | 19,156 | ||
| R | 7,413 | 12,171 | 19,584 | ||
| R | 5,666 | 12,097 | 17,763 | ||
| R | 4,548 | 14,471 | 19,023 | ||
| R | 6,019 | 7,833 | 14,061 | ||
| R | 6,128 | 7,946 | 14,116 | ||
| R | 7,286 | 9,031 | 16,351 | ||
| D | 7,476 | 4,966 | 12,828 | ||
| D | 6,395 | 4,928 | 11,719 | ||
| R | 2,471 | 6,791 | 9,338 | ||
| R | 1,641 | 4,630 | 9,071 | ||
| R | 2,882 | 5,894 | 8,776 | ||
| D | 3,974 | 3,083 | 7,701 | ||
| O | 1,741 | 1,074 | 5,348 | ||
| R | 1,053 | 1,757 | 3,162 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
English
17.3%
German
14.1%
Irish
8.8%
American
6.5%
Scottish
3.4%
Italian
2.1%
French
1.3%
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. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
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.
2024 ACS
Median household income
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
Twin Falls County ranks near the middle of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
11.5%
Children face moderate poverty.
Children under 1816.5%
Working age (18–64)9.9%
Seniors (65+)7.1%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
85.1%
speak English only
Spanish11.1%
Other Indo-European1.8%
Asian & Pacific Islander1.0%
Other languages0.9%
Source · ACS 5-year estimates, 2024.
2020 religion census
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 here reached fifty-seven points in 1984. Between 2020 and 2024 the county moved four points toward the Republican candidate; the 2024 margin was forty-nine points.
A population of 93,734, a 79% non-Hispanic-white share, and a median household income of $67,409 describe the county. The county's voting pattern over the last decade is most similar to that of Jerome County and Klamath County. A non-English-speaking share of 15% reflects a meaningful Latino presence that votes, here, with the Republican grain.
Most similar counties
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Twin Falls County, Idaho. Akashic. https://akashic.app/county/16083/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions
How did Twin Falls County, Idaho vote in 2024?
In 2024, Twin Falls County, Idaho voted Republican by 48.8 points (R+49), carried by the Republican candidate. Out of 37,371 votes cast, 9,064 went Democratic and 27,302 went Republican.
What is Twin Falls County, Idaho's political typology?
Akashic places Twin Falls County, Idaho in the "Texan Right" typology — East Texas and the Piney Woods — solidly Republican, with a meaningful Latino presence. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 3 times, Republican 26 times, and other 1 times.
When did Twin Falls County, Idaho last vote Democratic?
The most recent presidential election in which Twin Falls County, Idaho voted Democratic was 1936.
How many people live in Twin Falls County, Idaho?
Twin Falls County, Idaho has a population of 93,734 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Twin Falls County, Idaho?
Median household income in Twin Falls County, Idaho is $67,409 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Twin Falls County, Idaho?
Akashic tracks 38 presidential elections in Twin Falls County, Idaho from 1876 to 2024. Of those, 3 went Democratic and 26 went Republican. The county's typology — "Texan Right" — captures where that record, its demographics, and its recent swing place it among American communities.