99chambers

Delaware House of Representatives seat · lines in effect since 2022

Delaware House District 40

A district of about 33,000 people, 17% of adults with a bachelor's degree. It votes R+42.6 relative to the nation for president.

Tim Dukes (R) · since Nov 6, 2012Next 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.

R+42.641st most
Democratic
Most DemocraticMost Republican21st seat · the majority lineDistrict 40

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. SenateR+38.7
GovernorR+40.6

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 41 seats. Small marks are other seats in Delaware. The black marker is District 40.

Adults with a bachelor's degree17% 0th pct · 41st of 41 in DE

Lowest of 41 seats.

White adults without a degree61% 98th pct · 2nd of 41 in DE

Higher than 98% of seats.

Hispanic residents13% 65th pct · 15th of 41 in DE

Higher than 65% of seats.

Black residents13% 35th pct · 27th of 41 in DE

Lower than 65% of seats.

Asian residents1% 12th pct · 36th of 41 in DE

Lower than 88% of seats.

People per square mile212 20th pct · 33rd of 41 in DE

Less dense than 80% 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 35
21% college gradsR+30.3Held RDistrict 39
DelawareR+22.5Held RDistrict 30
22% college gradsR+35.9Held RDistrict 41
30% college gradsR+26.7Held R

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. Timothy D. Dukes (R)
    2023– · Won 2022 unopposed, 2024 unopposed, 2026 unopposed

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