Delaware State Senate District 21
Safe Republican — shifted 16.8pp toward Republicans in 2024 — 46K residents
Delaware State Senate District 21 is a state senate district that has a population of 46,274. In the 2024 presidential election, it voted Republican with a margin of R+36.7. Akashic Edge tracks 5 presidential elections here, dating back to 2008.
| Year | Dem % | Rep % | Margin | Swing |
|---|---|---|---|---|
| 2024 | 31.0% | 67.7% | R+36.7 | R+16.8 |
| 2020 | 39.4% | 59.4% | R+20.0 | D+16.4 |
| 2016 | 29.8% | 66.2% | R+36.4 | R+49.2 |
| 2012 | 55.7% | 42.9% | D+12.8 | D+30.3 |
| 2008 | 40.5% | 57.9% | R+17.5 | — |
What defines DE-SD-21?
DE-SD-21 has been won by both parties in the last 5 presidential elections (1D, 4R) — a genuine swing geography. It has a working-class electorate (0% college-educated) — a demographic increasingly aligned with Republicans nationwide.
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Key Insights
- Latest election (2024) was a Republican landslide with a 36.7% margin
- Swung 16.8 points toward Republican between 2020 and 2024
- Won by both parties in recent history — Democrats most recently in 2012, Republicans in 2024
Who Lives Here
| Group | DE-SD-21 | State | National |
|---|---|---|---|
White (Non-Hispanic) | 64.9% | 58.1% | 57.4% |
Black / African American | 17.6% | 21.9% | 12.2% |
Hispanic / Latino | 10.9% | 11.0% | 19.3% |
Multiracial / Other | 4.5% | 4.2% | 4.0% |
Asian | 1.4% | 4.3% | 6.0% |
Native American / Alaska Native | 0.6% | 0.4% | 0.9% |
Who lives in Delaware State Senate District 21? 46,274 residents as of the 2020 Census.
Demographics
Scale, voting-age share, and this geography's footprint inside the national electorate.
Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.
Age structure, language use, and nativity signals that explain how this geography differs from state and nation.