† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
7 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 FallsIdahoUnited States
English16.5%19.3%9.5%
German13.1%16.5%12.5%
American7.5%5.3%5.3%
Irish7.2%9.5%9.4%
Scottish2.5%3.2%1.3%
Italian1.8%2.9%4.8%
Swedish1.4%1.9%—
Dutch1.1%——
Mexican22.2%11.0%11.3%
Spanish0.4%0.4%—
Peruvian0.4%0.2%—
Colombian0.4%0.2%0.4%
Spaniard0.3%0.4%—
Guatemalan0.3%0.2%0.5%
Salvadoran0.2%—0.7%
Maya0.1%——
Aztec0.1%——
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
Idaho
United States
Median age
36.7
37.6
39.1
Age 18–24
8.7%
9.8%
9.2%
Age 65 and older
16.8%
17.1%
17.2%
Household economy
Measure
Twin Falls
Idaho
United States
Median household income
$71,401
$77,800
$84,427
Poverty rate
11.6%
10.7%
12.5%
Bachelor's degree or higher (25+)
23.3%
31.8%
35.6%
Languages at home
Measure
Twin Falls
Idaho
United States
Speaks a non-English language at home
21.6%
11.0%
22.3%
Spanish
19.1%
8.1%
13.6%
Religious landscape
Measure
Twin Falls
Idaho
United States
Catholic
8.5%
11.1%
18.6%
Evangelical Protestant
7.4%
12.4%
16.5%
Unclaimed / not counted
56.2%
50.2%
51.5%
Latter-day Saints
23.7%
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, Idaho
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
−35.3%
1896
+77.7%
1900
+15.7%
1904
−34.7%
1908
−16.1%
1912
+2.5%
1916
+9.0%
1920
−34.1%
1924
−31.9%
1928
−38.6%
1932
+16.3%
1936
+23.7%
1940
−5.9%
1944
−8.9%
1948
−6.4%
1952
−46.5%
1956
−31.5%
1960
−19.6%
1964
−17.2%
1968
−38.1%
1972
−50.9%
1976
−28.4%
1980
−49.8%
1984
−56.0%
1988
−29.8%
1992
−15.4%
1996
−22.1%
2000
−42.5%
2004
−43.7%
2008
−31.6%
2012
−39.4%
2016
−37.6%
2020
−37.3%
2024
−41.4%
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
28.0%Harris23,454
69.4%Trump58,099
2.6%
R+41.4
R+4.0
R+39.9
83,759
R
29.9%Biden24,887
67.3%Trump55,963
2.8%
R+37.3
D+0.3
R+41.8
83,215
R
25.2%Clinton17,471
62.8%Trump43,575
12.0%
R+37.6
D+1.8
R+39.7
69,334
R
29.0%Obama19,476
68.4%Romney45,949
2.6%
R+39.4
R+7.8
R+43.3
67,166
R
33.0%Obama22,358
64.6%McCain43,761
2.4%
R+31.6
D+12.1
R+38.9
67,755
R
27.6%Kerry18,022
71.3%Bush46,603
1.2%
R+43.7
R+1.3
R+41.3
65,385
R
26.4%Gore15,035
68.9%Bush39,181
4.7%
R+42.5
R+20.3
R+43.0
56,872
R
30.7%Clinton17,899
52.8%Dole30,806
16.5%
R+22.1
R+6.7
R+30.6
58,347
R
27.1%Clinton16,407
42.5%Bush25,740
30.4%
R+15.4
D+14.4
R+21.0
60,547
R
34.1%Dukakis18,130
63.9%Bush33,997
2.0%
R+29.8
D+26.2
R+22.1
53,166
R
21.4%Mondale11,889
77.5%Reagan42,961
1.1%
R+56.0
R+6.2
R+37.8
55,438
R
21.8%Carter13,044
71.6%Reagan42,840
6.6%
R+49.8
R+21.4
R+40.1
59,819
R
34.0%Carter16,349
62.4%Ford30,016
3.6%
R+28.4
D+22.5
R+30.5
48,081
R
21.1%McGovern9,318
72.1%Nixon31,766
6.8%
R+50.9
R+12.9
R+27.8
44,064
R
22.7%Humphrey9,842
60.8%Nixon26,376
16.6%
R+38.1
R+20.9
R+37.4
43,411
R
41.4%Johnson18,659
58.6%Goldwater26,408
0.0%
R+17.2
D+2.4
R+39.8
45,067
R
40.2%Kennedy18,516
59.8%Nixon27,568
0.0%
R+19.6
D+11.9
R+19.8
46,084
R
34.2%Stevenson14,273
65.8%Eisenhower27,410
0.0%
R+31.5
D+15.0
R+16.1
41,683
R
26.7%Stevenson11,794
73.2%Eisenhower32,331
0.0%
R+46.5
R+40.2
R+35.8
44,140
R
46.0%Truman15,763
52.4%Dewey17,946
1.6%
R+6.4
D+2.5
R+10.9
34,263
R
45.4%Roosevelt15,309
54.3%Dewey18,304
0.2%
R+8.9
R+3.0
R+16.4
33,686
R
46.9%Roosevelt18,443
52.9%Willkie20,763
0.2%
R+5.9
R+29.6
R+15.9
39,286
D
60.6%Roosevelt19,422
37.0%Landon11,846
2.4%
D+23.7
D+7.3
R+0.6
32,033
D
56.9%Roosevelt17,289
40.5%Hoover12,318
2.6%
D+16.3
D+55.0
R+1.4
30,409
R
30.3%Smith7,315
68.9%Hoover16,627
0.7%
R+38.6
R+6.7
R+21.1
24,117
R
16.5%Davis3,878
48.4%Coolidge11,345
35.0%
R+31.9
D+2.3
R+6.7
23,433
R
32.9%Cox7,728
67.0%Harding15,746
0.1%
R+34.1
R+43.1
R+7.9
23,490
D
50.0%Wilson10,741
41.0%Hughes8,811
8.9%
D+9.0
D+6.5
D+5.8
21,469
O
31.4%Wilson5,124
28.8%Taft4,712
39.8%
Roosevelt +8.5
D+18.7
R+17.0
16,344
R
37.2%Bryan3,706
53.3%Taft5,313
9.5%
R+16.1
D+18.6
R+6.6
9,963
R
29.4%Parker1,383
64.1%Roosevelt3,018
6.5%
R+34.7
R+50.5
R+15.1
4,706
D
57.1%Bryan2,324
41.3%McKinley1,683
1.6%
D+15.7
R+62.0
D+23.3
4,073
D
88.7%Bryan2,112
11.0%McKinley262
0.3%
D+77.7
D+113.0
D+83.8
2,381
O
0.0%Cleveland1
35.3%Harrison717
64.6%
Weaver +29.3
—
R+36.9
2,031
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+48.2
vs
Presidential vote · 2024R+41.4
Registration leans Republican; the presidential vote runs 6.9 points more Republican.
DemocraticRepublicanUnaffiliatedOther parties
Voter registration in Twin Falls
Year
Total registered
Democratic
Republican
Unaffiliated
Other
2018
82,023
8,420
44,383
28,329
891
2020
95,456
12,254
52,368
29,691
1,143
2022
93,925
11,505
55,400
25,825
1,195
2024
97,600
11,973
59,060
25,335
1,232
domestic migration
Who moves in and out
Net domestic migration over time
+170 net domestic migration · 2025
20112025
Net +5,908 over 2011–2025 · gain loss
Domestic migration in Twin Falls in Twin Falls: net domestic migration by year
Year
Net domestic migration
2011
−1,270
2012
−1,251
2013
+170
2014
−21
2015
−29
2016
+532
2017
+929
2018
+25
2019
+587
2021
+3,277
2022
+1,880
2023
+860
2024
+49
2025
+170
The Twin Falls designated market area stretches across the Snake River Plain, where dairy, potato, and field-crop economies shape an electorate that has backed Republican presidential candidates by wide margins for decades.
Across the recorded series it reached a Democratic high of 77.7 points in 1896 and a Republican high of 56.0 points in 1984. Between 2020 and 2024 the market moved 4.0 points toward the Republican candidate; the 2024 margin was 41.4 points.
A population of 212,838, a 68% non-Hispanic-white share, and a median household income of $71,401 describe the market. The market's voting pattern over the last decade is most similar to that of Idaho Falls-Pocatello (Jackson) and Cheyenne-Scottsbluff.
Akashic
Political twins — media markets
The media markets 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 →
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Twin Falls, Idaho. Akashic. https://akashic.app/dma/760/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Twin Falls, Idaho voted Republican by 41.4 points (R+41.4), carried by the Republican candidate. Out of 83,759 votes cast, 23,454 went Democratic and 58,099 went Republican.
When did Twin Falls, Idaho last vote Democratic?
The most recent presidential election in which Twin Falls, Idaho voted Democratic was 1936.
How many people live in Twin Falls, Idaho?
Twin Falls, Idaho has a population of 212,838 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Twin Falls, Idaho?
Median household income in Twin Falls, Idaho is $71,401 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Twin Falls, Idaho?
Akashic tracks 34 presidential elections in Twin Falls, Idaho from 1892 to 2024. Of those, 5 went Democratic and 27 went Republican.
