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Indicators / United States / Presidential vote

Presidential vote margin

pts · MIT Election Data and Science Lab, County Presidential Election Returns 2000–2024, via electiondata.dev · Republican minus Democratic share of all presidential votes cast

United States, 2024
R+1.5
States with a figure
51 2024
Counties with a figure
3,104 2024
Presidential vote margin, United States, 2000–2024R+1.5 in 2024, against D+0.5 in 2000 (R+2.0).
-8.0-6.0-4.0-2.00.02.04.020002005201020152020
Indicator: Presidential vote margin, pts, yearly (Republican minus Democratic share of all presidential votes cast); MEDSL county returns, (Republican − Democratic) / all votesSource: MIT Election Data and Science Lab, County Presidential Election Returns 2000–2024 (CC0), via electiondata.dev county-president, version 2026-10-26.a942e8daa5
Show the numbers (7 rows)
YearUnited States
20241.5
2020-4.4
2016-2.1
2012-3.9
2008-7.3
20042.5
2000-0.5

Every state, 2024

RankStatePresidential vote margin4 yr8 yr12 yr
1WyomingR+45.8R+2.6D+0.5R+4.9
2West VirginiaR+41.9R+2.9D+0.3R+15.1
3IdahoR+36.5R+5.7R+4.7R+4.6
4North DakotaR+36.4R+3.1R+0.7R+16.8
5OklahomaR+34.3R+1.2D+2.1R+0.7
6ArkansasR+30.6R+3.0R+3.7R+6.9
7KentuckyR+30.5R+4.6R+0.7R+7.8
8AlabamaR+30.5R+5.0R+2.7R+8.2
9TennesseeR+29.7R+6.5R+3.7R+9.3
10South DakotaR+29.2R+3.0D+0.6R+11.2
11MississippiR+22.9R+6.3R+5.1R+11.4
12LouisianaR+22.0R+3.4R+2.4R+4.8
13UtahR+21.6R+1.2R+3.5D+26.5
14NebraskaR+20.6R+1.4D+4.5D+1.2
15MontanaR+19.9R+3.6D+0.5R+6.3
16IndianaR+19.0R+2.9D+0.2R+8.8
17MissouriR+18.4R+3.0D+0.2R+9.0
18South CarolinaR+17.9R+6.2R+3.6R+7.4
19KansasR+16.1R+1.5D+4.5D+5.5
20TexasR+13.7R+8.1R+4.7D+2.1
21AlaskaR+13.1R+3.0D+1.6D+0.9
22IowaR+13.1R+4.7R+3.7R+18.9
23FloridaR+13.1R+9.7R+11.9R+14.0
24OhioR+11.2R+3.2R+3.1R+14.2
25ArizonaR+5.5R+5.8R+2.0D+3.6
26North CarolinaR+3.2R+1.9D+0.4R+1.2
27NevadaR+3.1R+5.5R+5.5R+9.8
28GeorgiaR+2.2R+2.4D+2.9D+5.6
29PennsylvaniaR+1.7R+2.9R+1.0R+7.1
30MichiganR+1.4R+4.2R+1.2R+10.9
31WisconsinR+0.9R+1.5R+0.1R+7.7
32New HampshireD+2.8R+4.6D+2.4R+2.8
33MinnesotaD+4.2R+2.9D+2.7R+3.5
34VirginiaD+5.8R+4.3D+0.5D+1.9
35New JerseyD+5.9R+10.0R+8.2R+11.9
36New MexicoD+6.0R+4.8R+2.2R+4.1
37MaineD+6.5R+2.1D+3.5R+8.8
38IllinoisD+10.9R+6.1R+6.1R+6.0
39ColoradoD+11.0R+2.5D+6.1D+5.6
40New YorkD+12.6R+10.3R+9.9R+17.2
41Rhode IslandD+13.6R+7.2R+1.9R+13.9
42OregonD+14.3R+1.8D+3.3D+2.2
43ConnecticutD+14.5R+5.6D+0.9R+2.8
44DelawareD+14.7R+4.2D+3.3R+3.9
45WashingtonD+18.2R+1.0D+2.0D+3.3
46CaliforniaD+20.1R+9.0R+10.0R+3.0
47HawaiiD+23.1R+6.4R+9.1R+19.6
48MassachusettsD+25.2R+8.0R+2.4D+2.1
49MarylandD+28.5R+4.7D+2.1D+2.5
50VermontD+31.2R+3.9D+4.8R+4.4
51District of ColumbiaD+83.8R+2.9R+3.0D+0.2

Rank 1 is the highest value, the most Republican. States are the 50 states, DC, Puerto Rico and the Virgin Islands where they have a figure.

The widest margins each way, 2024

Most RepublicanStatePresidential vote margin
Roberts CountyTexasR+92.1
Grant CountyNebraskaR+91.8
Hayes CountyNebraskaR+91.7
Borden CountyTexasR+91.5
King CountyTexasR+91.1
McPherson CountyNebraskaR+90.1
Garfield CountyMontanaR+89.6
Motley CountyTexasR+88.8
Glasscock CountyTexasR+88.2
Sherman CountyTexasR+88.1
Most DemocraticStatePresidential vote margin
District of ColumbiaDistrict of ColumbiaD+83.8
Prince George's CountyMarylandD+74.8
Petersburg cityVirginiaD+72.8
Baltimore cityMarylandD+72.4
Oglala Lakota CountySouth DakotaD+70.6
Clayton CountyGeorgiaD+69.2
Charlottesville cityVirginiaD+68.7
Claiborne CountyMississippiD+67.6
Orleans ParishLouisianaD+67.0
Richmond cityVirginiaD+66.3

Every county's figure is on its own page, in its profile table, with its rank among all counties and within its state.

Get this data

This page's numbers, as JSON:

curl https://visualizedata.org/data/us-indicators/us-pres-margin.json

Every place from electiondata.dev (live, no key; MIT Election Data and Science Lab data, this exact version):

curl "https://api.electiondata.dev/v1/county-president@2026-10-26.a942e8daa5/download/county-president.parquet"

Open the JSON

Source

  • MIT Election Data and Science Lab, County Presidential Election Returns 2000–2024 (CC0): MEDSL county returns, (Republican − Democratic) / all votes.
  • Read through electiondata.dev, dataset county-president, version 2026-10-26.a942e8daa5; its 1 input files from the MIT Election Data and Science Lab are named with their sha256 in this page's data, and the site's checks recompute every figure from them.
  • The margin is the Republican candidate's votes minus the Democratic candidate's, as a share of every presidential vote cast in the county, third parties and write-ins included. A state is the sum of every reporting unit MEDSL lists in it, so Alaska (which reports by state house district, not county) has a state figure but no county figures, and Connecticut's former counties count toward the state. The changes compare with the elections 4, 8 and 12 years before. MEDSL's file is served by Harvard Dataverse after a short form, so the site's checks read a copy whose MD5 Dataverse publishes.
  • Every four years, when MEDSL publishes the certified county returns.
  • Built 2026-10-27.