Boundary 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
GroupClark CountyIdahoUnited States
English15.0%19.3%9.5%
American13.9%5.3%5.3%
Canadian9.2%——
German7.3%16.5%12.5%
Scottish4.1%3.2%1.3%
Irish3.4%9.5%9.4%
Scotch-Irish2.4%——
Norwegian1.8%2.4%—
Mexican28.4%11.0%11.3%
Spaniard0.4%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
Clark County
Idaho
United States
Median age
31.1
37.6
39.1
Age 18–24
12.3%
9.8%
9.2%
Age 65 and older
12.0%
17.1%
17.2%
Household economy
Measure
Clark County
Idaho
United States
Median household income
$55,208
$77,800
$84,427
Poverty rate
11.7%
10.7%
12.5%
Bachelor's degree or higher (25+)
20.5%
31.8%
35.6%
Languages at home
Measure
Clark County
Idaho
United States
Speaks a non-English language at home
27.7%
11.0%
22.3%
Spanish
27.2%
8.1%
13.6%
Religious landscape
Measure
Clark County
Idaho
United States
Catholic
—
11.1%
18.6%
Evangelical Protestant
—
12.4%
16.5%
Unclaimed / not counted
71.0%
50.2%
51.5%
Mainline Protestant
6.1%
2.7%
5.2%
Latter-day Saints
22.9%
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.
Clark County, Idaho
Precinct data
Results by precinct
3 precincts · 333 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
Clark County precinct-level presidential election results for 2024
Precinct -001001
21
100
0
121
17.4%
82.6%
R+65.3
Precinct -003003
14
98
1
113
12.4%
86.7%
R+74.3
Precinct -002002
15
82
2
99
15.2%
82.8%
R+67.7
presidential history
Presidential margin, 1920–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1920
−52.6%
1924
−63.4%
1928
−50.0%
1932
+8.1%
1936
−5.5%
1940
−30.6%
1944
−27.5%
1948
−22.5%
1952
−50.4%
1956
−35.6%
1960
−23.3%
1964
−17.0%
1968
−45.2%
1972
−60.3%
1976
−31.9%
1980
−60.5%
1984
−70.8%
1988
−35.2%
1992
−23.6%
1996
−34.3%
2000
−64.9%
2004
−72.5%
2008
−64.3%
2012
−51.5%
2016
−56.2%
2020
−71.7%
2024
−69.1%
DemocraticRepublican
38 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
15.0%Harris50
84.1%Trump280
0.6%La Cruz2
R+69.1
D+2.6
R+67.6
333
R
13.2%Biden41
84.9%Trump264
1.3%Jorgensen4
R+71.7
R+15.5
R+76.2
311
R
15.5%Clinton44
71.7%Trump203
8.1%McMullin23
R+56.2
R+4.7
R+58.3
283
R
20.1%Obama66
71.6%Romney235
4.9%Johnson16
R+51.5
D+12.7
R+55.4
328
R
17.1%Obama64
81.3%McCain305
1.6%
R+64.3
D+8.3
R+71.5
375
R
13.0%Kerry46
85.6%Bush302
1.4%
R+72.5
R+7.6
R+70.1
353
R
16.5%Gore63
81.4%Bush311
0.3%Nader1
R+64.9
R+30.6
R+65.4
382
R
27.0%Clinton117
61.3%Dole266
10.4%Perot45
R+34.3
R+10.7
R+42.9
434
R
22.5%Clinton95
46.1%Bush195
28.1%Perot119
R+23.6
D+11.5
R+29.2
423
R
31.6%Dukakis133
66.7%Bush281
1.7%
R+35.2
D+35.7
R+27.4
421
R
14.2%Mondale59
85.1%Reagan353
0.7%
R+70.8
R+10.4
R+52.6
415
R
18.0%Carter87
78.5%Reagan379
3.5%
R+60.5
R+28.6
R+50.7
483
R
32.6%Carter169
64.5%Ford334
2.9%
R+31.9
D+28.5
R+33.9
518
R
14.0%McGovern64
74.3%Nixon339
11.6%
R+60.3
R+15.1
R+37.2
456
R
21.4%Humphrey87
66.6%Nixon271
12.0%
R+45.2
R+28.2
R+44.5
407
R
41.5%Johnson186
58.5%Goldwater262
0.0%
R+17.0
D+6.3
R+39.5
448
R
38.3%Kennedy176
61.7%Nixon283
0.0%
R+23.3
D+12.3
R+23.5
459
R
32.2%Stevenson151
67.8%Eisenhower318
0.0%
R+35.6
D+14.8
R+20.2
469
R
24.8%Stevenson126
75.2%Eisenhower382
0.0%
R+50.4
R+27.9
R+39.6
508
R
38.2%Truman165
60.6%Dewey262
1.2%
R+22.5
D+5.0
R+26.9
432
R
36.1%Roosevelt180
63.5%Dewey317
0.4%
R+27.5
D+3.2
R+34.9
499
R
34.7%Roosevelt212
65.3%Willkie399
0.0%
R+30.6
R+25.1
R+40.6
611
R
46.9%Roosevelt272
52.4%Landon304
0.7%
R+5.5
R+13.7
R+29.8
580
D
54.0%Roosevelt325
45.8%Hoover276
0.2%
D+8.1
D+58.1
R+9.6
602
R
24.9%Smith129
74.9%Hoover388
0.2%
R+50.0
D+13.4
R+32.5
518
R
6.0%Davis43
69.5%Coolidge496
24.5%La Follette175
R+63.4
R+10.8
R+38.3
714
R
23.6%Cox184
76.3%Harding594
0.1%
R+52.6
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R+26.4
779
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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
9.2%38
78.2%322
412
2020
R
13.5%42
81.7%254
311
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+77.0
vs
Presidential vote · 2024R+69.1
Registration leans Republican; the presidential vote runs 7.9 points more Republican.
DemocraticRepublicanUnaffiliatedOther parties
Voter registration in Clark County, ID
Year
Total registered
Democratic
Republican
Unaffiliated
Other
2018
383
17
312
50
4
2020
390
18
324
44
4
2022
352
17
290
42
3
2024
374
20
308
43
3
domestic migration
Who moves in and out
Net domestic migration over time
+1 net domestic migration · 2025
20112025
Net −241 over 2011–2025 · gain loss
Domestic migration in Clark County, ID in Clark County, ID: net domestic migration by year
Year
Net domestic migration
2011
−36
2012
−91
2013
−11
2014
+4
2015
−5
2016
−24
2017
+11
2018
−38
2019
−14
2021
−4
2022
+7
2023
−22
2024
−19
2025
+1
Clark County's roughly 1,000 residents make it among the smallest counties by population in the contiguous U.S., and its presidential margins have consistently ranked among Idaho's widest, reflecting a sparse, ranching-dominated landscape far from any urban center.
Across the recorded series it reached a Democratic high of 8.1 points in 1932 and a Republican high of 72.5 points in 2004. Between 2020 and 2024 the county moved 2.6 points toward the Democratic candidate; the 2024 margin was 69.1 points.
A population of 849, a 63% non-Hispanic-white share, and a median household income of $55,208 describe the county. The county's voting pattern over the last decade is most similar to that of Lincoln County and Oldham County.
Akashic
Political twins — counties
The counties 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.
In 2024, Clark County, Idaho voted Republican by 69.1 points (R+69.1), carried by the Republican candidate. Out of 333 votes cast, 50 went Democratic and 280 went Republican.
When did Clark County, Idaho last vote Democratic?
The most recent presidential election in which Clark County, Idaho voted Democratic was 1932.
How many people live in Clark County, Idaho?
Clark County, Idaho has a population of 849 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Clark County, Idaho?
Median household income in Clark County, Idaho is $55,208 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Clark County, Idaho?
Akashic tracks 38 presidential elections in Clark County, Idaho from 1876 to 2024. Of those, 1 went Democratic and 26 went Republican.
