Delaware State Senate seat · lines in effect since 2022
Delaware Senate District 18
A district of about 57,000 people, 20% Hispanic, 22% of adults with a bachelor's degree. It votes R+20.4 relative to the nation for president.
Where it sits among all 21 seats
Every Delaware State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2024 | |
|---|---|
| U.S. Senate | R+16.6 |
| Governor | R+20.4 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 7, 2026, 3:01 PM ET
Who lives here, compared
Grey bars show the spread of all 21 seats. Small marks are other seats in Delaware. The black marker is District 18.
Lower than 90% of seats.
Higher than 80% of seats.
Higher than 90% of seats.
Lower than 55% of seats.
Lower than 85% of seats.
Less dense than 95% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
District 21DelawareR+35.1Not up in 2026District 19
31% college gradsR+12.2Held RDistrict 15
24% college gradsR+27.9Held RDistrict 16
24% Black · 33% college gradsR+0.4Not up in 2026
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET