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Delaware / Senate

How did Delaware vote for the Senate?

2024 · data family: electiondata.dev

Lisa Blunt Rochester (Democrat) won by 17.1 points

17.1ptsSenate, 2024: winner's margin

Compare every state: where Delaware ranks for 2024

Every regular Senate election in Delaware since 197617 regular elections; Democrats were ahead in 13 and Republicans in 4.
R +40.0R +20.0evenD +20.0D +40.0D +60.019801990200020102020
Indicator: Democratic candidate's share of Senate votes minus the Republican's, points (regular elections; special elections are in the table)Source: electiondata.dev senate-results, version 2026-10-25.247421eda6; MIT Election Data and Science Lab, U.S. Senate statewide 1976-2024
Show the numbers (17 rows)
YearMargin
2024D +17.1
2020D +21.5
2018D +22.1
2014D +13.6
2012D +37.5
2008D +29.4
2006D +41.5
2002D +17.4
2000D +11.8
1996D +21.9
1994R +13.3
1990D +26.8
1988R +24.1
1984D +20.2
1982R +11.0
1978D +16.9
1976R +12.2

Every Senate race since 1976

RaceWinnerRunner-upMarginVotes
2024Lisa Blunt Rochester (D) 56.6%Eric Hansen (R) 39.5%17.1 pts500,606
2020Christopher A. Coons (D) 59.4%Lauren Witzke (R) 37.9%21.5 pts490,935
2018Thomas R. Carper (D) 60.0%Robert B. Arlett (R) 37.8%22.1 pts362,592
2014Christopher A. Coons (D) 55.8%Kevin Wade (R) 42.2%13.6 pts234,038
2012Thomas R. Carper (D) 66.4%Kevin Wade (R) 29.0%37.5 pts399,606
2010 specialChristopher A. Coons (D) 56.6%Christine O'donnell (R) 40.0%16.6 pts307,402
2008Joseph R. Biden Jr. (D) 64.7%Christine O'donnell (R) 35.3%29.4 pts398,134
2006Thomas R. Carper (D) 70.2%Jan Ting (R) 28.7%41.5 pts242,972
2002Joseph R. Biden Jr. (D) 58.2%Raymond J. Clatworthy (R) 40.8%17.4 pts232,314
2000Thomas R. Carper (D) 55.5%William V. Roth Jr. (R) 43.7%11.8 pts326,993
1996Joseph R. Biden Jr. (D) 60.0%Raymond J. Clatworthy (R) 38.1%21.9 pts275,591
1994William V. Roth Jr. (R) 55.8%Charles M. Oberly (D) 42.5%13.3 pts199,000
1990Joseph R. Biden Jr. (D) 62.7%M. Jane Brady (R) 35.8%26.8 pts180,157
1988William V. Roth Jr. (R) 62.1%S. B. Woo (D) 37.9%24.1 pts243,493
1984Joseph R. Biden Jr. (D) 60.1%John M. Burris (R) 39.9%20.2 pts245,932
1982William V. Roth Jr. (R) 55.2%David N. Levinson (D) 44.2%11.0 pts190,960
1978Joseph R. Biden Jr. (D) 58.0%James H. Baxter Jr. (R) 41.0%16.9 pts162,072
1976William V. Roth Jr. (R) 55.8%Thomas C. Maloney (D) 43.6%12.2 pts224,795

Get this data

This page's numbers, as JSON:

curl https://visualizedata.org/data/places/us-de/senate.json

Every Senate race, every state, from electiondata.dev (live, no key):

curl "https://api.electiondata.dev/v1/senate-results/download/senate-results.csv"

Open the JSON

What this can't tell you

  • Statewide totals say nothing about who voted or why.
  • Candidates with a party's support under another name (Minnesota's DFL, New York's fusion lines) are counted with that party, as the MIT data's simplified party does; independents stay independents.

How the answer is decided

Each candidate's votes are summed over every ballot line; blank, over- and under-votes are left out. The margin is the winner's share of the votes minus the runner-up's. A runoff, where held, is the result.

Sources