Delaware State Senate seat · lines in effect since 2022
Delaware Senate District 7
A district of about 49,000 people, 22% Hispanic, 29% of adults with a bachelor's degree. It votes D+19.8 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.
| 2022 | 2024 | 2026 | |
|---|---|---|---|
| U.S. Senate | No race | D+21.0 | No race |
| Governor | No race | D+11.8 | No race |
| Delaware State Senate | D+17.4 | No race | D+34.6 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: Delaware Department of ElectionsUpdated 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 7.
Lower than 60% of seats.
Higher than 75% of seats.
Highest of 21 seats.
Lower than 75% of seats.
Higher than 50% of seats.
Denser 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 931% college gradsD+25.8Held DDistrict 13
43% Black · 26% college gradsD+49.3Held DDistrict 12
29% Black · 37% college gradsD+27.1Held DDistrict 14
26% Black · 27% college gradsD+12.2Held D
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
Who has held it
These lines took effect in 2022.
- Spiros Mantzavinos (D)
2023– · Won 2022 by 17.4, 2026 by 34.6
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)