99chambers

Delaware House of Representatives seat · lines in effect since 2022

Delaware House District 31

A district of about 18,000 people, 51% Black, 30% of adults with a bachelor's degree. It votes D+40.1 relative to the nation for president.

Sean Lynn (D) · since Nov 4, 2014Next election Nov 7, 2028The 2026 race →

Where it sits among all 41 seats

Every Delaware House of Representatives seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

D+40.18th most
Democratic
Most DemocraticMost Republican21st seat · the majority lineDistrict 31

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.

202220242026
U.S. SenateNo raceD+41.6No race
GovernorNo raceD+36.7No race
Delaware House of RepresentativesD+31.0No raceD+53.7

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 41 seats. Small marks are other seats in Delaware. The black marker is District 31.

Adults with a bachelor's degree30% 42nd pct · 24th of 41 in DE

Lower than 58% of seats.

White adults without a degree30% 22nd pct · 32nd of 41 in DE

Lower than 78% of seats.

Hispanic residents8% 35th pct · 27th of 41 in DE

Lower than 65% of seats.

Black residents51% 95th pct · 3rd of 41 in DE

Higher than 95% of seats.

Asian residents3% 48th pct · 22nd of 41 in DE

Lower than 52% of seats.

People per square mile1,399 65th pct · 15th of 41 in DE

Denser than 65% 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 17
38% Black · 26% college gradsD+37.9Held DDistrict 5
50% Black · 26% college gradsD+59.6Held DDistrict 29
35% Black · 32% college gradsD+15.8Held DDistrict 32
28% Black · 30% college gradsD+26.9Held 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.

  1. Sean M. Lynn (D)
    2023– · Won 2022 by 31.0, 2024 unopposed, 2026 by 53.7

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)