† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
2 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
GroupTwin Falls, IDIdahoUnited States
English16.4%19.3%9.5%
German13.4%16.5%12.5%
Irish8.3%9.5%9.4%
American6.6%5.3%5.3%
Scottish3.2%3.2%1.3%
Swedish1.8%1.9%—
Dutch1.7%——
Italian1.7%2.9%4.8%
Mexican19.7%11.0%11.3%
Peruvian0.4%0.2%—
Colombian0.4%0.2%0.4%
Spanish0.2%0.4%—
Costa Rican0.2%——
Guatemalan0.2%0.2%0.5%
Spaniard0.2%0.4%—
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
Twin Falls, ID
Idaho
United States
Median age
35.7
37.6
39.1
Age 18–24
8.7%
9.8%
9.2%
Age 65 and older
16.0%
17.1%
17.2%
Household economy
Measure
Twin Falls, ID
Idaho
United States
Median household income
$68,322
$77,800
$84,427
Poverty rate
11.7%
10.7%
12.5%
Bachelor's degree or higher (25+)
21.5%
31.8%
35.6%
Languages at home
Measure
Twin Falls, ID
Idaho
United States
Speaks a non-English language at home
19.1%
11.0%
22.3%
Spanish
15.9%
8.1%
13.6%
Other Indo-European
1.0%
0.5%
2.0%
Religious landscape
Measure
Twin Falls, ID
Idaho
United States
Catholic
7.5%
11.1%
18.6%
Evangelical Protestant
8.8%
12.4%
16.5%
Unclaimed / not counted
55.8%
50.2%
51.5%
Latter-day Saints
23.6%
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.
Twin Falls, ID
presidential history
Presidential margin, 1908–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1908
−22.3%
1912
+12.5%
1916
+11.6%
1920
−35.1%
1924
−32.5%
1928
−46.1%
1932
+14.9%
1936
+21.6%
1940
−11.5%
1944
−12.4%
1948
−9.9%
1952
−51.4%
1956
−34.8%
1960
−22.8%
1964
−21.4%
1968
−40.8%
1972
−55.5%
1976
−32.6%
1980
−53.4%
1984
−57.2%
1988
−30.0%
1992
−16.5%
1996
−25.0%
2000
−45.8%
2004
−51.6%
2008
−38.4%
2012
−44.0%
2016
−46.2%
2020
−45.9%
2024
−49.7%
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
23.8%Harris10,806
73.5%Trump33,316
2.7%
R+49.7
R+3.7
R+48.2
45,329
R
25.5%Biden11,284
71.4%Trump31,631
3.2%
R+45.9
D+0.3
R+50.4
44,313
R
20.6%Clinton7,562
66.8%Trump24,472
12.5%
R+46.2
R+2.1
R+48.3
36,624
R
26.5%Obama9,240
70.6%Romney24,577
2.9%
R+44.0
R+5.6
R+47.9
34,823
R
29.6%Obama10,415
68.0%McCain23,929
2.4%
R+38.4
D+13.2
R+45.7
35,191
R
23.6%Kerry7,802
75.3%Bush24,849
1.1%
R+51.6
R+5.8
R+49.2
33,015
R
25.0%Gore7,137
70.8%Bush20,212
4.2%
R+45.8
R+20.8
R+46.3
28,537
R
29.3%Clinton8,505
54.3%Dole15,751
16.4%
R+25.0
R+8.5
R+33.5
29,021
R
27.6%Clinton8,332
44.0%Bush13,307
28.4%
R+16.5
D+13.6
R+22.0
30,223
R
34.0%Dukakis9,063
64.0%Bush17,073
2.1%
R+30.0
D+27.2
R+22.3
26,689
R
20.9%Mondale5,851
78.1%Reagan21,887
1.0%
R+57.2
R+3.9
R+39.0
28,030
R
20.4%Carter6,203
73.8%Reagan22,387
5.7%
R+53.4
R+20.7
R+43.6
30,333
R
32.3%Carter7,885
65.0%Ford15,847
2.7%
R+32.6
D+22.8
R+34.7
24,391
R
18.8%McGovern4,232
74.2%Nixon16,736
7.0%
R+55.5
R+14.7
R+32.3
22,547
R
21.7%Humphrey4,977
62.5%Nixon14,349
15.9%
R+40.8
R+19.4
R+40.1
22,975
R
39.3%Johnson9,466
60.7%Goldwater14,631
0.0%
R+21.4
D+1.3
R+44.0
24,097
R
38.6%Kennedy9,564
61.4%Nixon15,202
0.0%
R+22.8
D+12.0
R+22.9
24,766
R
32.6%Stevenson7,371
67.4%Eisenhower15,224
0.0%
R+34.8
D+16.6
R+19.4
22,595
R
24.3%Stevenson5,866
75.7%Eisenhower18,278
0.0%
R+51.4
R+41.5
R+40.6
24,153
R
44.3%Truman8,143
54.2%Dewey9,961
1.4%
R+9.9
D+2.5
R+14.4
18,366
R
43.7%Roosevelt7,869
56.1%Dewey10,103
0.2%
R+12.4
R+0.9
R+19.9
18,014
R
44.2%Roosevelt9,167
55.6%Willkie11,551
0.2%
R+11.5
R+33.1
R+21.4
20,759
D
59.3%Roosevelt9,850
37.7%Landon6,263
3.0%
D+21.6
D+6.7
R+2.7
16,606
D
55.9%Roosevelt8,614
41.1%Hoover6,321
3.0%
D+14.9
D+61.0
R+2.9
15,398
R
26.5%Smith3,230
72.7%Hoover8,841
0.8%
R+46.1
R+13.6
R+28.6
12,169
R
17.6%Davis2,017
50.1%Coolidge5,747
32.3%
R+32.5
D+2.6
R+7.4
11,460
R
32.4%Cox3,666
67.6%Harding7,632
0.0%
R+35.1
R+46.7
R+8.9
11,298
D
51.6%Wilson3,974
40.0%Hughes3,083
8.4%
D+11.6
R+0.9
D+8.4
7,701
O
32.6%Wilson1,741
20.1%Taft1,074
47.4%
Roosevelt +14.8
D+34.7
R+7.1
5,348
R
33.3%Bryan1,053
55.6%Taft1,757
11.1%
R+22.3
—
R+12.7
3,162
—
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No data
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—
—
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—
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No data
—
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No data
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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
20.1%5,583
66.4%18,420
27,728
2020
R
26.8%11,754
68.0%29,805
43,828
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+54.0
vs
Presidential vote · 2024R+49.7
Registration leans Republican; the presidential vote runs 4.3 points more Republican.
DemocraticRepublicanUnaffiliatedOther parties
Voter registration in Twin Falls, ID
Year
Total registered
Democratic
Republican
Unaffiliated
Other
2018
43,311
3,698
24,298
14,758
557
2020
51,419
5,474
29,601
15,617
727
2022
50,661
4,987
31,172
13,768
734
2024
53,496
5,133
34,025
13,585
753
domestic migration
Who moves in and out
Net domestic migration over time
+583 net domestic migration · 2025
20112025
Net +8,131 over 2011–2025 · gain loss
Domestic migration in Twin Falls, ID in Twin Falls, ID: net domestic migration by year
Year
Net domestic migration
2011
−320
2012
−573
2013
+451
2014
+394
2015
+288
2016
+858
2017
+911
2018
+135
2019
+410
2021
+2,181
2022
+1,473
2023
+892
2024
+448
2025
+583
Twin Falls has absorbed one of Idaho's highest rates of refugee resettlement alongside rapid Latino population growth, creating demographic shifts that analysts watch closely in a region that votes reliably Republican by double-digit margins.
Across the recorded series it reached a Democratic high of 21.6 points in 1936 and a Republican high of 57.2 points in 1984. Between 2020 and 2024 the metro moved 3.7 points toward the Republican candidate; the 2024 margin was 49.7 points.
A population of 118,907, a 71% non-Hispanic-white share, and a median household income of $68,322 describe the metro. The metro's voting pattern over the last decade is most similar to that of Ontario, OR-ID and Blackfoot, 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
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Twin Falls, ID, Idaho. Akashic. https://akashic.app/cbsa/46300/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Twin Falls, ID, Idaho voted Republican by 49.7 points (R+49.7), carried by the Republican candidate. Out of 45,329 votes cast, 10,806 went Democratic and 33,316 went Republican.
When did Twin Falls, ID, Idaho last vote Democratic?
The most recent presidential election in which Twin Falls, ID, Idaho voted Democratic was 1936.
How many people live in Twin Falls, ID, Idaho?
Twin Falls, ID, Idaho has a population of 118,907 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Twin Falls, ID, Idaho?
Median household income in Twin Falls, ID, Idaho is $68,322 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Twin Falls, ID, Idaho?
Akashic tracks 34 presidential elections in Twin Falls, ID, Idaho from 1892 to 2024. Of those, 3 went Democratic and 26 went Republican.
