Seffner, Florida
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | −18.8% |
| 2008 | −4.3% |
| 2012 | −5.0% |
| 2016 | −9.7% |
| 2020 | −10.1% |
| 2024 | −15.4% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| R | 41.5%Harris1,753 | 56.9%Trump2,406 | 1.6% | R+15.4 | R+5.4 | R+14.0 | 4,228 | |
| R | 44.2%Biden1,887 | 54.2%Trump2,317 | 1.6% | R+10.1 | R+0.3 | R+14.5 | 4,271 | |
| R | 42.5%Clinton1,506 | 52.2%Trump1,851 | 5.3% | R+9.7 | R+4.7 | R+11.8 | 3,544 | |
| R | 47.0%Obama1,488 | 52.0%Romney1,647 | 1.0% | R+5.0 | R+0.7 | R+8.9 | 3,167 | |
| R | 47.2%Obama1,526 | 51.5%McCain1,665 | 1.4% | R+4.3 | D+14.5 | R+11.6 | 3,235 | |
| R | 40.1%Kerry1,301 | 58.8%Bush1,910 | 1.1% | R+18.8 | — | R+16.3 | 3,248 |
Seffner sits along the I-4 corridor east of Tampa, where rapid suburban expansion has layered newer residential development over a historically rural, working-class base — a demographic shift that mirrors competitive-margin patterns across greater Hillsborough County.
Across the recorded series it reached a Republican high of 18.8 points in 2004. Between 2020 and 2024 the city moved 5.4 points toward the Republican candidate; the 2024 margin was 15.4 points.
A population of 8,885, a 51% non-Hispanic-white share, and a median household income of $93,333 describe the city. The city's voting pattern over the last decade is most similar to that of Willow Oak and Ellenton.
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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.
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Seffner, Florida. Akashic. https://akashic.app/city/1264925/. Accessed May 20, 2026. License: CC BY 4.0.