† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
1 counties by 2024 margin · County returns · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupMountain Home, IDIdahoUnited States
German15.6%16.5%12.5%
English12.7%19.3%9.5%
Irish9.3%9.5%9.4%
American4.3%5.3%5.3%
Italian3.8%2.9%4.8%
Scottish2.7%3.2%1.3%
Norwegian2.5%2.4%—
French2.4%—1.6%
Mexican14.5%11.0%11.3%
Puerto Rican0.7%0.3%1.8%
Guatemalan0.5%0.2%0.5%
Peruvian0.4%0.2%—
Spanish0.4%0.4%—
Spaniard0.3%0.4%—
Cuban0.2%—0.7%
Dominican0.2%—0.7%
African American†2.3%—9.9%
Jamaican0.3%—0.4%
Nigerian0.2%—0.2%
Filipino1.3%—0.9%
Chinese0.6%0.2%1.3%
Korean0.2%—0.4%
Chamorro0.2%——
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Mountain Home, ID
Idaho
United States
Median age
33.1
37.6
39.1
Age 18–24
11.9%
9.8%
9.2%
Age 65 and older
14.8%
17.1%
17.2%
Household economy
Measure
Mountain Home, ID
Idaho
United States
Median household income
$65,359
$77,800
$84,427
Poverty rate
10.5%
10.7%
12.5%
Bachelor's degree or higher (25+)
22.4%
31.8%
35.6%
Languages at home
Measure
Mountain Home, ID
Idaho
United States
Speaks a non-English language at home
14.2%
11.0%
22.3%
Spanish
10.1%
8.1%
13.6%
Russian, Polish, or other Slavic
1.2%
0.5%
0.7%
Religious landscape
Measure
Mountain Home, ID
Idaho
United States
Catholic
13.5%
11.1%
18.6%
Evangelical Protestant
8.5%
12.4%
16.5%
Unclaimed / not counted
63.0%
50.2%
51.5%
Latter-day Saints
10.2%
22.1%
2.0%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Mountain Home, ID
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
−34.8%
1896
+62.3%
1900
+18.0%
1904
−14.3%
1908
−0.1%
1912
+7.9%
1916
+24.1%
1920
−10.2%
1924
−19.7%
1928
−20.6%
1932
+33.0%
1936
+36.9%
1940
+20.5%
1944
+22.4%
1948
+29.4%
1952
−5.4%
1956
−2.5%
1960
+4.6%
1964
+10.9%
1968
−18.0%
1972
−41.6%
1976
−12.7%
1980
−36.3%
1984
−51.4%
1988
−28.3%
1992
−17.8%
1996
−19.5%
2000
−43.8%
2004
−50.3%
2008
−36.4%
2012
−33.9%
2016
−47.0%
2020
−45.5%
2024
−48.5%
DemocraticRepublican
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
24.5%Harris2,611
73.0%Trump7,791
2.5%
R+48.5
R+3.0
R+47.1
10,672
R
25.5%Biden2,601
71.0%Trump7,246
3.5%
R+45.5
D+1.5
R+50.0
10,205
R
21.3%Clinton1,814
68.3%Trump5,816
10.4%
R+47.0
R+13.1
R+49.1
8,519
R
31.4%Obama2,513
65.3%Romney5,227
3.3%
R+33.9
D+2.5
R+37.8
8,001
R
30.7%Obama2,591
67.2%McCain5,665
2.1%
R+36.4
D+13.8
R+43.7
8,436
R
24.3%Kerry1,959
74.6%Bush6,011
1.1%
R+50.3
R+6.5
R+47.8
8,061
R
26.4%Gore1,840
70.2%Bush4,891
3.4%
R+43.8
R+24.3
R+44.3
6,966
R
33.7%Clinton2,324
53.1%Dole3,668
13.2%
R+19.5
R+1.6
R+28.0
6,904
R
27.0%Clinton1,858
44.8%Bush3,087
28.2%
R+17.8
D+10.5
R+23.4
6,890
R
35.1%Dukakis2,078
63.5%Bush3,756
1.4%
R+28.3
D+23.0
R+20.6
5,919
R
23.9%Mondale1,458
75.3%Reagan4,595
0.9%
R+51.4
R+15.1
R+33.2
6,105
R
28.6%Carter1,760
64.9%Reagan3,994
6.5%
R+36.3
R+23.6
R+26.5
6,157
R
42.7%Carter2,164
55.5%Ford2,808
1.8%
R+12.7
D+28.9
R+14.8
5,063
R
24.9%McGovern1,153
66.6%Nixon3,078
8.5%
R+41.6
R+23.6
R+18.5
4,625
R
32.6%Humphrey1,230
50.6%Nixon1,908
16.7%
R+18.0
R+28.9
R+17.3
3,769
D
55.4%Johnson2,310
44.6%Goldwater1,857
0.0%
D+10.9
D+6.3
R+11.7
4,167
D
52.3%Kennedy2,440
47.7%Nixon2,226
0.0%
D+4.6
D+7.1
D+4.4
4,666
R
48.8%Stevenson1,759
51.2%Eisenhower1,849
0.0%
R+2.5
D+2.9
D+12.9
3,608
R
47.3%Stevenson1,484
52.7%Eisenhower1,653
0.1%
R+5.4
R+34.7
D+5.4
3,139
D
63.5%Truman1,589
34.1%Dewey854
2.4%
D+29.4
D+7.0
D+24.9
2,503
D
61.0%Roosevelt1,627
38.6%Dewey1,030
0.4%
D+22.4
D+1.9
D+14.9
2,667
D
60.2%Roosevelt1,632
39.7%Willkie1,077
0.1%
D+20.5
R+16.5
D+10.5
2,713
D
65.8%Roosevelt1,567
28.9%Landon688
5.3%
D+36.9
D+3.9
D+12.7
2,380
D
65.0%Roosevelt1,615
31.9%Hoover794
3.1%
D+33.0
D+53.6
D+15.2
2,486
R
39.4%Smith739
59.9%Hoover1,125
0.7%
R+20.6
R+0.9
R+3.1
1,877
O
18.4%Davis381
38.0%Coolidge789
43.6%
La Follette +5.6
R+9.4
D+5.5
2,076
R
44.9%Cox867
55.1%Harding1,065
0.0%
R+10.2
R+34.3
D+15.9
1,932
D
59.6%Wilson1,104
35.5%Hughes658
4.9%
D+24.1
D+16.2
D+20.9
1,852
O
35.0%Wilson536
27.1%Taft415
37.9%
Roosevelt +2.9
D+8.0
R+11.6
1,532
R
42.3%Bryan660
42.4%Taft662
15.4%
R+0.1
D+14.2
D+9.4
1,562
R
38.8%Parker433
53.1%Roosevelt593
8.1%
R+14.3
R+32.3
D+5.3
1,117
D
59.0%Bryan565
41.0%McKinley393
0.0%
D+18.0
R+44.3
D+25.5
958
D
81.1%Bryan535
18.8%McKinley124
0.2%
D+62.3
D+97.1
D+68.4
660
O
0.0%Cleveland0
34.8%Harrison188
65.2%
Weaver +30.4
—
R+36.5
540
Congressional elections · 2 Senate races
U.S. Senate
Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year
Won
Democratic
Republican
Total
2022
R
20.2%1,334
66.3%4,380
6,605
2020
R
27.8%2,814
67.2%6,797
10,119
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+52.7
vs
Presidential vote · 2024R+48.5
Registration leans Republican; the presidential vote runs 4.1 points more Republican.
DemocraticRepublicanUnaffiliatedOther parties
Voter registration in Mountain Home, ID
Year
Total registered
Democratic
Republican
Unaffiliated
Other
2018
10,395
957
6,001
3,312
125
2020
12,646
1,430
7,520
3,522
174
2022
12,334
1,358
7,712
3,059
205
2024
13,083
1,381
8,271
3,217
214
domestic migration
Who moves in and out
Net domestic migration over time
−334 net domestic migration · 2025
20112025
Net −3,887 over 2011–2025 · gain loss
Domestic migration in Mountain Home, ID in Mountain Home, ID: net domestic migration by year
Year
Net domestic migration
2011
−1,259
2012
−496
2013
−451
2014
−500
2015
−914
2016
−93
2017
+400
2018
+212
2019
−153
2021
+37
2022
+124
2023
−131
2024
−329
2025
−334
Mountain Home anchors Elmore County, home to Mountain Home Air Force Base, whose personnel and veteran population shape a consistently Republican-leaning electorate in Idaho's otherwise sparsely settled high desert.
Across the recorded series it reached a Democratic high of 62.3 points in 1896 and a Republican high of 51.4 points in 1984. Between 2020 and 2024 the metro moved 3.0 points toward the Republican candidate; the 2024 margin was 48.5 points.
A population of 29,321, a 70% non-Hispanic-white share, and a median household income of $65,359 describe the metro. The metro's voting pattern over the last decade is most similar to that of Winnemucca, NV and Ontario, OR-ID.
Akashic
Political twins — metros
The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
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
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Mountain Home, ID, Idaho. Akashic. https://akashic.app/cbsa/34300/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Mountain Home, ID, Idaho voted Republican by 48.5 points (R+48.5), carried by the Republican candidate. Out of 10,672 votes cast, 2,611 went Democratic and 7,791 went Republican.
When did Mountain Home, ID, Idaho last vote Democratic?
The most recent presidential election in which Mountain Home, ID, Idaho voted Democratic was 1964.
How many people live in Mountain Home, ID, Idaho?
Mountain Home, ID, Idaho has a population of 29,321 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Mountain Home, ID, Idaho?
Median household income in Mountain Home, ID, Idaho is $65,359 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Mountain Home, ID, Idaho?
Akashic tracks 34 presidential elections in Mountain Home, ID, Idaho from 1892 to 2024. Of those, 10 went Democratic and 21 went Republican.
