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Idaho Falls, ID

Idaho Falls, ID

Latest: 2024↓ R+1.8 vs 2020

Safe Republican — 165K residents — 3 counties

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Race & ancestry
Group%
▶White (Non-Hispanic)(13)
81.4%
▶Hispanic / Latino(15)
13.7%
▶Black / African American(5)
0.4%
▶Asian(6)
0.7%
▶Middle Eastern / North African(6)
0.1%
▶Native American / Alaska Native(6)
0.7%
▶Native Hawaiian / Pacific Islander(3)
0.1%
Multiracial / Other
3.0%
View full demographics →
Religious adherence
Tradition% Pop% Adherents
Other56.6%84.6%
LDS (Mormon)55.9%83.7%
Catholic4.9%7.4%
Evangelical Protestant4.1%6.1%
Mainline Protestant1.1%1.6%
Black Protestant0.2%0.3%
Non-religious33.1%—
View full religion →
Presidential results
YearResult
2024Trump+52.1
2020Trump+50.3
2016Trump+45.7
2012Romney+56.7
2008McCain+47.7
2004Bush+59.1
2000Bush+55.6
1996Dole+34.8
1992Bush+27.7
View full election history →

Idaho Falls, ID is a metro area that has a population of 165,361. In the 2024 presidential election, it voted Republican with a margin of R+52.1. Akashic Edge tracks 29 presidential elections here, dating back to 1912.

Idaho Falls, ID Presidential Election Results, 1948–2024
YearDem %Rep %MarginSwing
202422.5%74.7%R+52.1R+1.8
202023.1%73.4%R+50.3R+4.7
201617.7%63.3%R+45.7D+11.1
201220.5%77.3%R+56.7R+9.0
200825.0%72.7%R+47.7D+11.4
200419.8%78.9%R+59.1R+3.5
200020.3%75.9%R+55.6R+20.8
199625.9%60.7%R+34.8R+7.0
199219.1%46.9%R+27.7D+24.7
198822.9%75.3%R+52.4D+14.7
198416.0%83.2%R+67.2R+4.2
198015.6%78.5%R+63.0R+28.8
197631.3%65.5%R+34.1D+7.3
197219.0%60.4%R+41.5R+2.7
196824.5%63.3%R+38.8R+32.9
196447.0%53.0%R+5.9D+2.3
196045.9%54.1%R+8.2D+20.1
195635.8%64.1%R+28.3D+7.5
195232.1%67.9%R+35.8R+45.7
194854.3%44.4%D+9.9—
Political Identity

What defines Idaho Falls, ID?

Idaho Falls, ID voted overwhelmingly Republican in 2024. Akashic Edge tracks 29 presidential elections here, revealing how its political character has evolved over more than a century.

Constituent Counties

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Similarity Explorer

Similar metro areas

Nearest neighbors matched on the same place-page feature set used across the dossier system.
8 visible matches
Constituent Geography

Counties in Idaho Falls, ID

2024 presidential results across the counties that make up this geography.
Sort:
CountyPop.MarginDemRepTotalShare
Bonneville130K
R+45.6
14,45840,05356,08176.4%
Jefferson33K
R+73.2
1,89113,48115,83021.6%
Butte3K
R+72.5
1851,2681,4932.0%
3 countiesTotal votes: 73,404
Historian Query

Ask the Historian

Explore Idaho Falls, ID's political evolution with the Historian
Automated Readout

Key Insights

High-confidence patterns distilled from this geography's election history.
  • Has voted Republican in the last 5 presidential elections
  • Latest election (2024) was a Republican landslide with a 52.1% margin
  • Turnout increased by 3.4 percentage points since the previous presidential election
Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.
Idaho Falls, IDCensus ACS 2024Ancestry detail available
Census race profile
Major Census race and ethnicity groups shown as a share of total population.
Expand rows for ancestry detail
White (Non-Hispanic) 81.4%Hispanic 13.7%Multiracial 3.0%Asian 0.7%Native American 0.7%Black 0.4%
GroupIdaho Falls, IDNational
▶White (Non-Hispanic)(13)
81.4%57.4%
▶Hispanic / Latino(15)
13.7%19.3%
Multiracial / Other
3.0%4.0%
▶Asian(6)
0.7%6.0%
▶Native American / Alaska Native(6)
0.7%0.9%
▶Black / African American(5)
0.4%12.2%
▶Native Hawaiian / Pacific Islander(3)
0.1%0.2%
▶Middle Eastern / North African(6)
0.1%0.9%
Method notes

Census treats race and Hispanic/Latino origin as separate questions. Race categories other than Hispanic reflect total populations (small Hispanic overlap in Black, Asian, AIAN, NHPI). “Multiracial / Other” is derived as a non-overlapping remainder.

Click rows to expand ancestry detail. Ancestry from ACS B04006, B03001, B02020, B02016. Totals may differ from race — individuals can report multiple ancestries.

Black / African American (estimated remainder) is derived as Black population share minus reported Sub-Saharan African and West Indian ancestry. It is shown as an estimated ancestry detail, not a standalone Census ancestry category.

MENA estimated from ancestry reporting — Census does not have a separate MENA race category. Not shown in bar (overlaps with other race groups).

Religious Adherents

Population that are religious adherents:
66.9%(110.6K people)
U.S. Religion Census 2020
Browse all religions
Tradition% Pop% AdherentsUS PopUS Adherents
Other
56.6%84.6%——
LDS (Mormon)
55.9%83.7%——
Catholic
4.9%7.4%——
Evangelical Protestant
4.1%6.1%——
Mainline Protestant
1.1%1.6%——
Black Protestant
0.2%0.3%——
Non-religiousPopulation
33.1%———
Click the chevron to expand denominations. Tradition and denomination rows label both share of total population and share of all religious adherents. Non-religious is shown as a share of total population only.

Who lives in the Idaho Falls, ID metro area? 165,361 residents across 3 counties.

Demographic Comparison

Demographics

Read this geography's profile in three layers: local, state (where available), and national baseline.
Idaho Falls, ID vs National165K residents
Population & electorate

Scale, voting-age share, and this geography's footprint inside the national electorate.

Total population
Local vs state vs U.S.
165K
local
165KNational 334.9M
Share of U.S. population
Local vs state vs U.S.
0.05%
local
0.05%National 100%
Voting-age population
Local vs state vs U.S.
68.7%
local
68.7%National 75.7%
Economic profile

Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.

Median household income
Local vs state vs U.S.
$79,964
local
$79,964National $83,960
Poverty rate
Local vs state vs U.S.
9.9%
local
9.9%National 12.5%
College degree
Local vs state vs U.S.
31.7%
local
31.7%National 35.6%
Homeownership
Local vs state vs U.S.
73.9%
local
73.9%National 65.2%
Community profile

Age structure, language use, and nativity signals that explain how this geography differs from state and nation.

Median age
Local vs state vs U.S.
33.6 yrs
local
33.6 yrsNational 39.1 yrs
Age 18–29
Local vs state vs U.S.
14.8%
local
14.8%National 15.7%
Age 65+
Local vs state vs U.S.
13.6%
local
13.6%National 17.0%
Foreign born
Local vs state vs U.S.
4.1%
local
4.1%National 14.1%
Non-English at home
Local vs state vs U.S.
10.0%
local
10.0%National 22.2%
English only
Local vs state vs U.S.
90.0%
local
90.0%National 77.8%
Voter Turnout

Turnout in Idaho Falls, ID

Estimated using 2020 Census voting-age population.
2024 Turnout
64.6%
vs Previous
+3.4pp
Voting-Age Pop
113,629
History
1988–2024
Competitiveness

How competitive is Idaho Falls, ID?

Safe RAvg margin: R+49.4 (last 3 elections)
2008
R+47.7
2012
R+56.7
2016
R+45.7
2020
R+50.3
2024
R+52.1
Elasticity
11.1pp
margin range
Party Flips
0
last 30 years
5-Elec Avg
R+50.5
Ticket-Splitting

Do voters in Idaho Falls, ID split their tickets?

Divergence between offices in the same election reveals persuadable voters.
ConsistencyHeavy splitting (0/100)
2022 Office Comparisons
OfficesMargin AMargin BSplit
Senate vs GovernorR+52.6R+56.64.0pp
Average divergence across office pairs: 18.1pp
Containing Geography

Located In

Idaho Falls, ID sits inside these higher-level geographies.
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