Idaho Falls, ID: Sunbelt Conservative metro. In 2024, voted R+52%. Republican peak: R+67 in 1984.
Key facts
- 2024 presidential margin
- R+52MIT Election Lab
- Political typology
- Sunbelt ConservativeAkashic typology
- Population
- 165,3612024 5-year
- Median household income
- $80,1712024 5-year
- White (non-Hispanic)
- 85.1%2024 5-year
- Black
- 0.3%2024 5-year
- Hispanic / Latino
- 13.7%2024 5-year
- Peak Democratic margin
- D+42 in 1936MIT Election Lab
- Peak Republican margin
- R+67 in 1984MIT Election Lab
2024 presidential election
Idaho Falls, ID
TrumpR+52
How it voted
Share of the 2024 vote
| Donald Trump ✓Republican | 74.3% | 54,802 |
|---|---|---|
| Kamala HarrisDemocratic | 22.4% | 16,534 |
| OtherAll other candidates | 3.3% | 2,413 |
D+60R+60
3 counties, each filled by 2024 D-vs-R margin. Hover any county for its result.
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 | No data |
| 1912 | −10.3% |
| 1916 | +17.7% |
| 1920 | −39.4% |
| 1924 | −41.5% |
| 1928 | −17.7% |
| 1932 | +25.4% |
| 1936 | +41.5% |
| 1940 | +18.7% |
| 1944 | +11.9% |
| 1948 | +9.9% |
| 1952 | −35.8% |
| 1956 | −28.3% |
| 1960 | −8.2% |
| 1964 | −5.9% |
| 1968 | −38.8% |
| 1972 | −41.5% |
| 1976 | −34.1% |
| 1980 | −63.0% |
| 1984 | −67.2% |
| 1988 | −52.4% |
| 1992 | −27.7% |
| 1996 | −34.8% |
| 2000 | −55.6% |
| 2004 | −59.1% |
| 2008 | −47.7% |
| 2012 | −56.7% |
| 2016 | −45.7% |
| 2020 | −50.3% |
| 2024 | −51.9% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 16,534 | 54,802 | 73,749 | ||
| R | 16,103 | 51,106 | 69,622 | ||
| R | 10,066 | 36,049 | 56,913 | ||
| R | 11,464 | 43,172 | 55,880 | ||
| R | 13,376 | 38,930 | 53,554 | ||
| R | 9,761 | 38,828 | 49,183 | ||
| R | 8,689 | 32,522 | 42,852 | ||
| R | 10,947 | 25,643 | 42,244 | ||
| R | 8,425 | 20,630 | 43,995 | ||
| R | 8,751 | 28,807 | 38,240 | ||
| R | 6,049 | 31,407 | 37,738 | ||
| R | 6,309 | 31,850 | 40,567 | ||
| R | 9,638 | 20,143 | 30,765 | ||
| R | 5,301 | 16,905 | 27,972 | ||
| R | 6,654 | 17,200 | 27,167 | ||
| R | 12,546 | 14,125 | 26,671 | ||
| R | 12,220 | 14,416 | 26,636 | ||
| R | 8,168 | 14,621 | 22,789 | ||
| R | 6,684 | 14,138 | 20,828 | ||
| D | 7,825 | 6,401 | 14,415 | ||
| D | 7,549 | 5,937 | 13,513 | ||
| D | 8,970 | 6,139 | 15,135 | ||
| D | 8,761 | 3,562 | 12,520 | ||
| D | 7,380 | 4,354 | 11,926 | ||
| R | 3,761 | 5,382 | 9,161 | ||
| R | 932 | 4,682 | 9,042 | ||
| R | 2,476 | 5,700 | 8,176 | ||
| D | 3,947 | 2,729 | 6,896 | ||
| R | 864 | 1,176 | 3,038 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
English
25.9%
German
13.1%
American
6.6%
Irish
5.8%
Scottish
3.3%
Italian
2.3%
French
1.8%
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: 33.6 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
$80,171
Idaho Falls, ID ranks near the middle of US counties.
Idaho Falls, ID$80,171
Idaho$77,800
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
9.9%
Child poverty is below the national average.
Children under 1813.3%
Working age (18–64)8.3%
Seniors (65+)10.5%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
90.0%
speak English only
Spanish8.7%
Other Indo-European0.9%
Asian & Pacific Islander0.4%
Other languages0.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 29.6% of residents not counted as adherents by any reporting body.
Idaho Falls anchors eastern Idaho's Snake River Plain and posts some of the state's most lopsided Republican margins, driven by a predominantly Latter-day Saint population and an economy tied to the Idaho National Laboratory and agriculture.
Across the recorded series it reached a Democratic high of forty-two points in 1936 and a Republican high of sixty-seven points in 1984. Between 2020 and 2024 the metro moved two points toward the Republican candidate; the 2024 margin was fifty-two points.
A population of 165,361, a 85% non-Hispanic-white share, and a median household income of $80,171 describe the metro.
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.
Idaho Falls, ID. Akashic. https://akashic.app/cbsa/26820/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did Idaho Falls, ID vote in 2024?
In 2024, Idaho Falls, ID voted Republican by 51.9 points (R+52), carried by the Republican candidate. Out of 73,749 votes cast, 16,534 went Democratic and 54,802 went Republican.
What is Idaho Falls, ID's political typology?
Akashic places Idaho Falls, ID in the "Sunbelt Conservative" typology. 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 metro has voted Democratic 6 times, Republican 23 times, and other 0 times.
When did Idaho Falls, ID last vote Democratic?
The most recent presidential election in which Idaho Falls, ID voted Democratic was 1948.
How many people live in Idaho Falls, ID?
Idaho Falls, ID has a population of 165,361 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Idaho Falls, ID?
Median household income in Idaho Falls, ID is $80,171 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Idaho Falls, ID?
Akashic tracks 38 presidential elections in Idaho Falls, ID from 1876 to 2024. Of those, 6 went Democratic and 23 went Republican. The metro's typology — "Sunbelt Conservative" — captures where that record, its demographics, and its recent swing place it among American communities.