congressional districtIdaho 1st Congressional District
presidential margin
2004–2024 · Democratic minus Republican
2004R+38.6
2008R+27.6
2012R+32.9
2016R+39.1
2020R+38.2
2024R+44.8
net swing · 2004→2024R+6.2R+38.6 → R+44.8
vs. U.S. · 2024R+43.3R+44.8 vs R+1.5
presidential returns
2024 turnout 65.4% of 729,394 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
125,757
339,659
11,850
477,266
729,394
65.4%
2020
132,143
302,955
12,512
447,610
650,440†
68.8%
2016
86,211
220,947
37,268
344,426
588,324†
58.5%
2012
99,829
203,834
12,467
316,130
549,216†
57.6%
2008
110,174
197,577
8,723
316,474
520,609†
60.8%
2004
85,857
196,424
3,913
286,194
492,003†
58.2%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
District by 2024 margin · Precinct returns · VEST · 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
GroupID-1IdahoUnited States
German19.4%16.5%12.5%
English18.0%19.3%9.5%
Irish11.4%9.5%9.4%
American4.8%5.3%5.3%
Italian3.7%2.9%4.8%
Scottish3.2%3.2%1.3%
Norwegian3.1%2.4%—
Swedish1.7%1.9%—
Mexican9.3%11.0%11.3%
Spanish0.4%0.4%—
Spaniard0.4%0.4%—
Puerto Rican0.3%0.3%1.8%
Guatemalan0.2%0.2%0.5%
Colombian0.2%0.2%0.4%
Chinese0.2%0.2%1.3%
Asian Indian0.2%—1.4%
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
ID-1
Idaho
United States
Median age
39.1
37.6
39.1
Age 18–24
8.7%
9.8%
9.2%
Age 65 and older
18.2%
17.1%
17.2%
Household economy
Measure
ID-1
Idaho
United States
Median household income
$79,577
$77,800
$84,427
Poverty rate
9.8%
10.7%
12.5%
Bachelor's degree or higher (25+)
32.6%
31.8%
35.6%
Languages at home
Measure
ID-1
Idaho
United States
Speaks a non-English language at home
9.6%
11.0%
22.3%
Spanish
6.5%
8.1%
13.6%
Religious landscape
Measure
ID-1
Idaho
United States
Catholic
—
11.1%
18.6%
Evangelical Protestant
—
12.4%
16.5%
Unclaimed / not counted
—
50.2%
51.5%
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.
Idaho 1st Congressional District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−38.6%
2008
−27.6%
2012
−32.9%
2016
−39.1%
2020
−38.2%
2024
−44.8%
DemocraticRepublican
6 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. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Federal officeholders only. State and local officeholders are planned for the next data pass.
Congressional elections · 25 House races
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Source · MIT Election Lab (MEDSL), House. CC-BY 4.0.
Year
District
Won
Democratic
Republican
Total
2024
1
R
25.4%118,656
71.0%331,049
466,242
2022
1
R
26.3%82,261
71.3%222,901
312,442
2020
1
R
28.6%131,380
67.8%310,736
458,576
2018
1
R
30.8%96,922
62.8%197,719
315,069
2016
1
R
31.8%113,052
68.2%242,252
355,357
2014
1
R
35.0%77,277
65.0%143,580
220,864
2012
1
R
30.8%97,450
63.0%199,402
316,724
2010
1
R
41.3%102,135
51.0%126,231
247,427
2008
1
D
50.6%175,898
49.4%171,687
347,585
2006
1
R
44.8%103,935
49.9%115,843
231,974
2004
1
R
30.5%90,927
69.5%207,662
298,589
2002
1
R
38.9%80,269
58.6%120,743
206,141
2000
1
R
31.4%84,080
64.8%173,743
268,116
1998
1
R
44.7%91,653
55.3%113,231
204,884
1996
1
R
47.5%125,899
50.0%132,344
264,778
1994
1
R
44.6%89,826
55.4%111,728
201,554
1992
1
D
58.0%140,985
37.5%90,983
242,890
1990
1
D
53.0%85,054
47.0%75,406
160,460
1988
1
R
34.2%70,328
65.8%135,221
205,549
1986
1
R
32.3%59,723
65.1%120,553
185,124
1984
1
R
31.4%63,591
68.6%139,085
202,676
1982
1
R
46.3%74,388
53.7%86,277
160,665
1980
1
R
46.3%100,697
53.7%116,845
217,542
1978
1
R
40.1%57,972
59.9%86,680
144,652
1976
1
R
45.4%79,662
54.6%95,833
175,495
Anchored by the Idaho Panhandle and the Treasure Valley's rural counties, ID-01 delivered a 43.6-point presidential margin in 2024, placing it among the most consistently one-sided congressional districts in the country.
Across the recorded series it reached a Republican high of 44.8 points in 2024. Between 2020 and 2024 the district moved 6.7 points toward the Republican candidate; the 2024 margin was 44.8 points.
A population of 919,529, a 80% non-Hispanic-white share, and a median household income of $79,577 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 2 and Congressional District (at Large).
Akashic
Political twins — districts
The congressional districts 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.
Idaho 1st Congressional District. Akashic. https://akashic.app/cd/1601/. Accessed May 20, 2026. License: CC BY 4.0.
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How did Idaho 1st Congressional District vote in 2024?
In 2024, Idaho 1st Congressional District voted Republican by 44.8 points (R+44.8), carried by the Republican candidate. Out of 477,266 votes cast, 125,757 went Democratic and 339,659 went Republican.
How many people live in Idaho 1st Congressional District?
Idaho 1st Congressional District has a population of 919,529 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Idaho 1st Congressional District?
Median household income in Idaho 1st Congressional District is $79,577 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Idaho 1st Congressional District?
Akashic tracks 6 presidential elections in Idaho 1st Congressional District from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
