- Lead
- 1,122
- Total
- 48,080
- vs nation
- R+0.9
Virginia 66th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 25
- Total
- 44,536
- vs nation
- R+4.5
- Lead
- 2,909
- Total
- 36,593
- vs nation
- R+10.0
- Lead
- 74
- Total
- 34,375
- vs nation
- R+4.1
- Lead
- 1,380
- Total
- 32,260
- vs nation
- R+3.0
- Lead
- 3,681
- Total
- 26,196
- vs nation
- R+11.6
- Lead
- 1,609
- Total
- 20,714
- vs nation
- R+8.3
- Lead
- 152
- Total
- 16,299
- vs nation
- R+7.6
Key facts
- 2024 presidential margin
- R+2.3MIT Election Lab
- Population
- 84,6812024 5-year
- Population density
- 227 / sq mi2024 5-year · TIGER/Line
- Land area
- 373 sq miTIGER/Line
- Median household income
- $103,8602024 5-year
- White (non-Hispanic)
- 58.9%2024 5-year
- Black
- 21.3%2024 5-year
- Hispanic / Latino
- 10.1%2024 5-year
- Peak Democratic margin
- D+56.6 in 1932MIT Election Lab
- Peak Republican margin
- R+14.2 in 1988MIT Election Lab
- Most similar
- State House District 86, VA · twin score 71.6
presidential history
Party record book
Virginia 66th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
2004–2024 · 6 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Barack Obama2008
51.6%
16,652 votes · D+4.3 · modeled estimate
Runner-up · Barack Obama, 2012 · 49.1%
Republican
George W. Bush2004
56.7%
14,851 votes · R+14.1 · modeled estimate
Runner-up · Donald Trump, 2016 · 51.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
23,196votes
48.2% of the vote · R+2.3 · modeled estimate
Runner-up · Joe Biden, 2020 · 21,805 votes
Republican
Donald Trump2024
24,318votes
50.6% of the vote · R+2.3 · modeled estimate
Runner-up · Donald Trump, 2020 · 21,830 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Kamala Harris2024
−0.9pts D vs U.S.
Place R+2.3 · U.S. R+1.5 · modeled estimate
Runner-up · Barack Obama, 2008 · −3.0 pts
Republican
George W. Bush2004
+11.6pts R vs U.S.
Place R+14.1 · U.S. R+2.5 · modeled estimate
Runner-up · Donald Trump, 2016 · +10.0 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
The district recorded a Republican presidential margin of R+2.3 in 2024 and D+4.3 in 2008, switching sides at least once in between. The district had about 75,100 residents, 63.1% White alone in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 56.6 points in 1932 and a Republican high of 14.2 points in 1988. Between 2020 and 2024 the district moved 2.3 points toward the Republican candidate; the 2024 margin was 2.3 points.
A population of 84,681, a 59% non-Hispanic-white share, and a median household income of $103,860 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 86 and State House District 89.
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Virginia 66th State House District. Akashic. https://akashic.app/sld-lower/51066/. Accessed May 20, 2026. License: CC BY 4.0.