† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
12 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
GroupBoiseUnited States
English17.8%9.5%
German16.8%12.5%
Irish10.3%9.4%
American4.6%5.3%
Italian3.4%4.8%
Scottish3.0%1.3%
Norwegian2.6%—
Swedish1.6%—
Mexican12.6%11.3%
Spanish0.5%—
Puerto Rican0.4%1.8%
Spaniard0.4%—
Guatemalan0.3%0.5%
Colombian0.2%0.4%
Peruvian0.2%—
Salvadoran0.2%0.7%
Asian Indian0.3%1.4%
Chinese0.2%1.3%
Filipino0.2%0.9%
Vietnamese0.2%0.6%
Korean0.2%0.4%
Japanese0.2%0.2%
Aztec0.2%—
African American†0.6%9.9%
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
Boise
United States
Median age
37.8
39.1
Age 18–24
8.8%
9.2%
Age 65 and older
16.6%
17.2%
Household economy
Measure
Boise
United States
Median household income
$82,738
$84,427
Poverty rate
9.6%
12.5%
Bachelor's degree or higher (25+)
34.8%
35.6%
Languages at home
Measure
Boise
United States
Speaks a non-English language at home
12.6%
22.3%
Spanish
8.8%
13.6%
Religious landscape
Measure
Boise
United States
Catholic
13.1%
18.6%
Evangelical Protestant
11.9%
16.5%
Unclaimed / not counted
54.7%
51.5%
Latter-day Saints
14.8%
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.
Boise, Idaho
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
−36.8%
1896
+51.6%
1900
+0.8%
1904
−38.0%
1908
−10.9%
1912
+1.3%
1916
+7.1%
1920
−28.3%
1924
−29.1%
1928
−42.0%
1932
+15.3%
1936
+24.8%
1940
+2.3%
1944
−8.1%
1948
−9.0%
1952
−40.9%
1956
−32.3%
1960
−20.2%
1964
−8.0%
1968
−37.0%
1972
−44.6%
1976
−26.4%
1980
−39.6%
1984
−48.1%
1988
−29.4%
1992
−18.4%
1996
−20.8%
2000
−36.0%
2004
−34.2%
2008
−18.1%
2012
−21.9%
2016
−23.6%
2020
−19.0%
2024
−25.5%
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
35.9%Harris157,473
61.4%Trump269,235
2.7%
R+25.5
R+6.5
R+24.0
438,511
R
38.9%Biden163,054
57.9%Trump242,557
3.1%
R+19.0
D+4.6
R+23.4
418,679
R
32.0%Clinton103,938
55.6%Trump180,333
12.3%
R+23.6
R+1.6
R+25.6
324,313
R
37.5%Obama112,324
59.4%Romney178,001
3.1%
R+21.9
R+3.8
R+25.8
299,634
R
39.6%Obama119,249
57.7%McCain173,811
2.6%
R+18.1
D+16.1
R+25.4
301,006
R
32.3%Kerry85,175
66.5%Bush175,461
1.2%
R+34.2
D+1.8
R+31.8
263,858
R
29.2%Gore62,329
65.2%Bush139,213
5.6%
R+36.0
R+15.2
R+36.5
213,403
R
33.8%Clinton69,423
54.6%Dole112,127
11.6%
R+20.8
R+2.4
R+29.3
205,391
R
27.3%Clinton52,979
45.7%Bush88,718
27.1%
R+18.4
D+11.0
R+24.0
194,285
R
34.2%Dukakis54,596
63.6%Bush101,553
2.2%
R+29.4
D+18.7
R+21.7
159,658
R
25.3%Mondale40,110
73.4%Reagan116,383
1.3%
R+48.1
R+8.5
R+29.9
158,555
R
25.6%Carter42,966
65.2%Reagan109,449
9.2%
R+39.6
R+13.2
R+29.9
167,791
R
35.4%Carter45,305
61.9%Ford79,122
2.7%
R+26.4
D+18.2
R+28.5
127,866
R
22.6%McGovern26,101
67.2%Nixon77,529
10.1%
R+44.6
R+7.6
R+21.5
115,298
R
24.9%Humphrey25,708
61.9%Nixon64,011
13.2%
R+37.0
R+29.1
R+36.3
103,412
R
46.0%Johnson46,888
54.0%Goldwater54,992
0.0%
R+8.0
D+12.3
R+30.5
101,888
R
39.9%Kennedy41,930
60.1%Nixon63,206
0.0%
R+20.2
D+12.0
R+20.4
105,136
R
33.9%Stevenson31,383
66.1%Eisenhower61,261
0.0%
R+32.3
D+8.6
R+16.8
92,644
R
29.5%Stevenson27,638
70.4%Eisenhower65,949
0.2%
R+40.9
R+31.9
R+30.1
93,735
R
44.2%Truman31,393
53.2%Dewey37,756
2.6%
R+9.0
R+0.9
R+13.4
71,024
R
45.6%Roosevelt30,253
53.7%Dewey35,611
0.7%
R+8.1
R+10.4
R+15.6
66,306
D
51.0%Roosevelt36,674
48.7%Willkie34,989
0.3%
D+2.3
R+22.5
R+7.6
71,887
D
59.0%Roosevelt35,164
34.1%Landon20,352
6.9%
D+24.8
D+9.5
D+0.6
59,623
D
54.9%Roosevelt29,235
39.6%Hoover21,070
5.5%
D+15.3
D+57.4
R+2.4
53,229
R
28.4%Smith12,037
70.4%Hoover29,840
1.1%
R+42.0
R+12.9
R+24.6
42,359
R
16.5%Davis6,875
45.6%Coolidge19,001
37.9%
R+29.1
R+0.8
R+3.9
41,685
R
35.6%Cox14,247
63.8%Harding25,561
0.6%
R+28.3
R+35.4
R+2.1
40,040
D
50.1%Wilson17,986
43.0%Hughes15,422
6.9%
D+7.1
D+5.8
D+4.0
35,870
O
30.1%Wilson8,985
28.8%Taft8,591
41.1%
Roosevelt +10.9
D+12.3
R+18.2
29,823
R
40.7%Bryan10,693
51.6%Taft13,568
7.6%
R+10.9
D+27.0
R+1.4
26,270
R
26.0%Parker5,167
64.0%Roosevelt12,710
10.0%
R+38.0
R+38.8
R+18.3
19,856
D
48.8%Bryan7,522
48.0%McKinley7,400
3.2%
D+0.8
R+50.8
D+8.3
15,421
D
75.3%Bryan6,728
23.7%McKinley2,117
1.0%
D+51.6
D+88.4
D+57.7
8,933
O
4.1%Cleveland265
40.9%Harrison2,635
55.0%
Weaver +14.0
—
R+38.5
6,439
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+38.6
vs
Presidential vote · 2024R+25.5
Registration leans Republican; the presidential vote runs 13 points more Republican.
DemocraticRepublicanUnaffiliatedOther parties
† Some years predate full county coverage; a flagged year sums only the counties reporting it.
Voter registration in Boise
Year
Total registered
Democratic
Republican
Unaffiliated
Other
2018 (partial)
392,651
59,082
183,800
144,484
5,285
2020 (partial)
476,521
80,375
228,068
161,107
6,971
2022
500,685
77,825
264,260
150,107
8,493
2024
533,095
81,918
287,430
154,665
9,082
domestic migration
Who moves in and out
Net domestic migration over time
+14,075 net domestic migration · 2025
20112025
Net +161,621 over 2011–2025 · gain loss
Domestic migration in Boise in Boise: net domestic migration by year
Year
Net domestic migration
2011
+2,273
2012
+3,753
2013
+5,762
2014
+7,943
2015
+5,648
2016
+11,998
2017
+15,240
2018
+16,998
2019
+17,345
2021
+27,887
2022
+12,963
2023
+9,148
2024
+10,588
2025
+14,075
The Boise media market anchors Idaho's most populous corridor, where rapid in-migration from California and the Pacific Northwest has introduced new demographic pressures into a region that has voted reliably Republican at the statewide level for decades.
Across the recorded series it reached a Democratic high of 51.6 points in 1896 and a Republican high of 48.1 points in 1984. Between 2020 and 2024 the market moved 6.5 points toward the Republican candidate; the 2024 margin was 25.5 points.
A population of 928,560, a 76% non-Hispanic-white share, and a median household income of $82,738 describe the market. The market's voting pattern over the last decade is most similar to that of Idaho Falls-Pocatello (Jackson) and Twin Falls.
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.
Boise, Idaho. Akashic. https://akashic.app/dma/757/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Boise, Idaho voted Republican by 25.5 points (R+25.5), carried by the Republican candidate. Out of 438,511 votes cast, 157,473 went Democratic and 269,235 went Republican.
When did Boise, Idaho last vote Democratic?
The most recent presidential election in which Boise, Idaho voted Democratic was 1940.
How many people live in Boise, Idaho?
Boise, Idaho has a population of 928,560 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Boise, Idaho?
Median household income in Boise, Idaho is $82,738 — above the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Boise, Idaho?
Akashic tracks 34 presidential elections in Boise, Idaho from 1892 to 2024. Of those, 6 went Democratic and 26 went Republican.
