- Lead
- 11,181
- Total
- 129,481
- vs nation
- D+10.1
Virginia 31st State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 20,320
- Total
- 129,501
- vs nation
- D+11.2
- Lead
- 6,925
- Total
- 108,618
- vs nation
- D+4.3
- Lead
- 4,608
- Total
- 96,798
- vs nation
- R+8.6
- Lead
- 634
- Total
- 85,165
- vs nation
- R+8.0
- Lead
- 13,797
- Total
- 68,016
- vs nation
- R+17.8
- Lead
- 10,866
- Total
- 48,568
- vs nation
- R+22.9
- Lead
- 6,063
- Total
- 32,766
- vs nation
- R+27.0
Key facts
- 2024 presidential margin
- D+8.6MIT Election Lab
- Population
- 220,2672024 5-year
- Population density
- 279 / sq mi2024 5-year · TIGER/Line
- Land area
- 789 sq miTIGER/Line
- Median household income
- $175,9952024 5-year
- White (non-Hispanic)
- 63.8%2024 5-year
- Black
- 6.1%2024 5-year
- Hispanic / Latino
- 13.7%2024 5-year
- Peak Democratic margin
- D+72.8 in 1924MIT Election Lab
- Peak Republican margin
- R+43.9 in 1972MIT Election Lab
- Most similar
- State Senate District 27, CO · twin score 89.8
presidential history
Party record book
Virginia 31st State Senate 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
Joe Biden2020
56.9%
73,629 votes · D+15.7 · modeled estimate
Runner-up · Kamala Harris, 2024 · 53.0%
Republican
George W. Bush2004
59.8%
40,655 votes · R+20.3 · modeled estimate
Runner-up · Mitt Romney, 2012 · 51.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
73,629votes
56.9% of the vote · D+15.7 · modeled estimate
Runner-up · Kamala Harris, 2024 · 68,653 votes
Republican
Donald Trump2024
57,472votes
44.4% of the vote · D+8.6 · modeled estimate
Runner-up · Donald Trump, 2020 · 53,309 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
Joe Biden2020
+11.2pts D vs U.S.
Place D+15.7 · U.S. D+4.5 · modeled estimate
Runner-up · Kamala Harris, 2024 · +10.1 pts
Republican
George W. Bush2004
+17.8pts R vs U.S.
Place R+20.3 · U.S. R+2.5 · modeled estimate
Runner-up · Mitt Romney, 2012 · +8.6 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.
Virginia 31st State Senate District sits in the Mid-Atlantic and Appalachia. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 72.8 points in 1924 and a Republican high of 43.9 points in 1972. Between 2020 and 2024 the district moved 7.1 points toward the Republican candidate; the 2024 margin was 8.6 points.
A population of 220,267, a 64% non-Hispanic-white share, and a median household income of $175,995 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 27 and State Senate District 9.
The state-senate 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 31st State Senate District. Akashic. https://akashic.app/sld-upper/51031/. Accessed May 20, 2026. License: CC BY 4.0.